https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&feed=atom&action=history UFR 3-10 Description - Revision history 2024-03-29T06:16:55Z Revision history for this page on the wiki MediaWiki 1.39.2 https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=33483&oldid=prev Dave.Ellacott: Dave.Ellacott moved page SilverP:UFR 3-10 Description to UFR 3-10 Description over redirect 2017-02-12T13:05:59Z <p>Dave.Ellacott moved page <a href="/w/index.php/SilverP:UFR_3-10_Description" class="mw-redirect" title="SilverP:UFR 3-10 Description">SilverP:UFR 3-10 Description</a> to <a href="/w/index.php/UFR_3-10_Description" title="UFR 3-10 Description">UFR 3-10 Description</a> over redirect</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:05, 12 February 2017</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table> Dave.Ellacott https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=17720&oldid=prev Dave.Ellacott: /* Preface */ 2011-01-31T10:05:43Z <p><span dir="auto"><span class="autocomment">Preface</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:05, 31 January 2011</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16">Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Preface ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Preface ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The underlying flow regime (UFR) &amp;ndash; the plane wall jet &amp;ndash; documented here is of major importance in many engineering applications, such as film cooling and the automobile demister, but it is also an important generic flow in itself.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The underlying flow regime (UFR) &amp;ndash<ins style="font-weight: bold; text-decoration: none;">;&amp;nbsp</ins>;the plane wall jet<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp;</ins>&amp;ndash; documented here is of major importance in many engineering applications, such as film cooling and the automobile demister, but it is also an important generic flow in itself.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>After a review of the existing literature, starting with the work of Launder and Rodi (1981, 1983), where the deficiencies of the experimental data for the turbulent wall jet were obvious, a test case for this UFR is chosen, which has been specifically designed to produce high-quality turbulence data for CFD model validation (Karlsson et al. (1993a,b) and Eriksson et al. (1997, 1998, 2002). A synthesis of the work is given in the PhD thesis of Eriksson (2003). The resulting data set is included in the ERCOFTAC data base and has been a test case at two ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling (Paris 1996, Delft 1997). Proceedings from the workshops are available from the editors and through the homepage www.ercoftac.org.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>After a review of the existing literature, starting with the work of Launder and Rodi (1981, 1983), where the deficiencies of the experimental data for the turbulent wall jet were obvious, a test case for this UFR is chosen, which has been specifically designed to produce high-quality turbulence data for CFD model validation (Karlsson et al. (1993a,b) and Eriksson et al. (1997, 1998, 2002). A synthesis of the work is given in the PhD thesis of Eriksson (2003). The resulting data set is included in the ERCOFTAC data base and has been a test case at two ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling (Paris 1996, Delft 1997). Proceedings from the workshops are available from the editors and through the homepage www.ercoftac.org.</div></td></tr> </table> Dave.Ellacott https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=17719&oldid=prev Dave.Ellacott: /* Preface */ 2011-01-31T10:05:10Z <p><span dir="auto"><span class="autocomment">Preface</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:05, 31 January 2011</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16">Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Preface ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Preface ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The underlying flow regime (UFR) &amp;<del style="font-weight: bold; text-decoration: none;">mdash</del>; the plane wall jet &amp;<del style="font-weight: bold; text-decoration: none;">mdash</del>; documented here is of major importance in many engineering applications, such as film cooling and the automobile demister, but it is also an important generic flow in itself.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The underlying flow regime (UFR) &amp;<ins style="font-weight: bold; text-decoration: none;">ndash</ins>; the plane wall jet &amp;<ins style="font-weight: bold; text-decoration: none;">ndash</ins>; documented here is of major importance in many engineering applications, such as film cooling and the automobile demister, but it is also an important generic flow in itself.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>After a review of the existing literature, starting with the work of Launder and Rodi (1981, 1983), where the deficiencies of the experimental data for the turbulent wall jet were obvious, a test case for this UFR is chosen, which has been specifically designed to produce high-quality turbulence data for CFD model validation (Karlsson et al. (1993a,b) and Eriksson et al. (1997, 1998, 2002). A synthesis of the work is given in the PhD thesis of Eriksson (2003). The resulting data set is included in the ERCOFTAC data base and has been a test case at two ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling (Paris 1996, Delft 1997). Proceedings from the workshops are available from the editors and through the homepage www.ercoftac.org.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>After a review of the existing literature, starting with the work of Launder and Rodi (1981, 1983), where the deficiencies of the experimental data for the turbulent wall jet were obvious, a test case for this UFR is chosen, which has been specifically designed to produce high-quality turbulence data for CFD model validation (Karlsson et al. (1993a,b) and Eriksson et al. (1997, 1998, 2002). A synthesis of the work is given in the PhD thesis of Eriksson (2003). The resulting data set is included in the ERCOFTAC data base and has been a test case at two ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling (Paris 1996, Delft 1997). Proceedings from the workshops are available from the editors and through the homepage www.ercoftac.org.</div></td></tr> </table> Dave.Ellacott https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=17718&oldid=prev Dave.Ellacott: /* Preface */ 2011-01-31T10:04:51Z <p><span dir="auto"><span class="autocomment">Preface</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:04, 31 January 2011</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16">Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Preface ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Preface ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The underlying flow regime (UFR) <del style="font-weight: bold; text-decoration: none;">– </del>the plane wall jet <del style="font-weight: bold; text-decoration: none;">- </del>documented here is of major importance in many engineering applications, such as film cooling and the automobile demister, but it is also an important generic flow in itself.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The underlying flow regime (UFR) <ins style="font-weight: bold; text-decoration: none;">&amp;mdash; </ins>the plane wall jet <ins style="font-weight: bold; text-decoration: none;">&amp;mdash; </ins>documented here is of major importance in many engineering applications, such as film cooling and the automobile demister, but it is also an important generic flow in itself.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>After a review of the existing literature, starting with the work of Launder and Rodi (1981, 1983), where the deficiencies of the experimental data for the turbulent wall jet were obvious, a test case for this UFR is chosen, which has been specifically designed to produce high-quality turbulence data for CFD model validation (Karlsson et al. (1993a,b) and Eriksson et al. (1997, 1998, 2002). A synthesis of the work is given in the PhD thesis of Eriksson (2003). The resulting data set is included in the ERCOFTAC data base and has been a test case at two ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling (Paris 1996, Delft 1997). Proceedings from the workshops are available from the editors and through the homepage www.ercoftac.org.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>After a review of the existing literature, starting with the work of Launder and Rodi (1981, 1983), where the deficiencies of the experimental data for the turbulent wall jet were obvious, a test case for this UFR is chosen, which has been specifically designed to produce high-quality turbulence data for CFD model validation (Karlsson et al. (1993a,b) and Eriksson et al. (1997, 1998, 2002). A synthesis of the work is given in the PhD thesis of Eriksson (2003). The resulting data set is included in the ERCOFTAC data base and has been a test case at two ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling (Paris 1996, Delft 1997). Proceedings from the workshops are available from the editors and through the homepage www.ercoftac.org.</div></td></tr> </table> Dave.Ellacott https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=11199&oldid=prev Niek.verhoeven at 19:20, 29 August 2009 2009-08-29T19:20:10Z <p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:20, 29 August 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l73">Line 73:</td> <td colspan="2" class="diff-lineno">Line 73:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{UFR|front=UFR 3-10|description=UFR 3-10 Description|references=UFR 3-10 References|testcase=UFR 3-10 Test Case|evaluation=UFR 3-10 Evaluation|qualityreview=UFR 3-10 Quality Review|bestpractice=UFR 3-10 Best Practice Advice|relatedACs=UFR 3-10 Related ACs}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{UFR|front=UFR 3-10|description=UFR 3-10 Description|references=UFR 3-10 References|testcase=UFR 3-10 Test Case|evaluation=UFR 3-10 Evaluation|qualityreview=UFR 3-10 Quality Review|bestpractice=UFR 3-10 Best Practice Advice|relatedACs=UFR 3-10 Related ACs}}</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[Category:Underlying Flow Regime]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr> </table> Niek.verhoeven https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=8488&oldid=prev Daveg: UFR 3-10 Description moved to SilverP:UFR 3-10 Description 2009-04-07T12:39:16Z <p><a href="/w/index.php/UFR_3-10_Description" title="UFR 3-10 Description">UFR 3-10 Description</a> moved to <a href="/w/index.php/SilverP:UFR_3-10_Description" class="mw-redirect" title="SilverP:UFR 3-10 Description">SilverP:UFR 3-10 Description</a></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:39, 7 April 2009</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table> Daveg https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=5095&oldid=prev David.Fowler at 16:34, 11 March 2009 2009-03-11T16:34:44Z <p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:34, 11 March 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{UFR|front=UFR 3-10|description=UFR 3-10 Description|references=UFR 3-10 References|testcase=UFR 3-10 Test Case|evaluation=UFR 3-10 Evaluation|qualityreview=UFR 3-10 Quality Review|bestpractice=UFR 3-10 Best Practice Advice|relatedACs=UFR 3-10 Related ACs}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{UFR|front=UFR 3-10|description=UFR 3-10 Description|references=UFR 3-10 References|testcase=UFR 3-10 Test Case|evaluation=UFR 3-10 Evaluation|qualityreview=UFR 3-10 Quality Review|bestpractice=UFR 3-10 Best Practice Advice|relatedACs=UFR 3-10 Related ACs}}</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l39">Line 39:</td> <td colspan="2" class="diff-lineno">Line 38:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] and [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] and [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#<del style="font-weight: bold; text-decoration: none;">_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;</del>[1]<del style="font-weight: bold; text-decoration: none;">&lt;/span&gt;&lt;/span&gt;</del>], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[<ins style="font-weight: bold; text-decoration: none;">[UFR 3-10 References</ins>#<ins style="font-weight: bold; text-decoration: none;">ftn1|</ins>[1] <ins style="font-weight: bold; text-decoration: none;">]</ins>], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]] over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Because of the persisting gaps in the knowledge of the turbulent wall jet, the work by Karlsson and Eriksson was initiated around 1990. It was explicitly aimed at producing high-quality turbulence data, with special attention to the near-wall region. A secondary objective was to provide a data set suitable for validation of numerical simulations. LDV was the obvious choice for measurement technique due to its superiority when taking turbulence data close to a wall, and its potential to yield accurate results even in very high turbulence intensity flows.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Because of the persisting gaps in the knowledge of the turbulent wall jet, the work by Karlsson and Eriksson was initiated around 1990. It was explicitly aimed at producing high-quality turbulence data, with special attention to the near-wall region. A secondary objective was to provide a data set suitable for validation of numerical simulations. LDV was the obvious choice for measurement technique due to its superiority when taking turbulence data close to a wall, and its potential to yield accurate results even in very high turbulence intensity flows.</div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l60">Line 60:</td> <td colspan="2" class="diff-lineno">Line 59:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Two major experimental studies were published during the course of that work. Wygnanski et al. (1992) and Abrahamsson (1997) both used hot-wire anemometry (HWA) to study the wall jet in stagnant surroundings. The experiment by Abrahamsson had similar inlet conditions to, and was closely coordinated with, the work by Eriksson, with an almost continuous exchange of results.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Two major experimental studies were published during the course of that work. Wygnanski et al. (1992) and Abrahamsson (1997) both used hot-wire anemometry (HWA) to study the wall jet in stagnant surroundings. The experiment by Abrahamsson had similar inlet conditions to, and was closely coordinated with, the work by Eriksson, with an almost continuous exchange of results.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The test case chosen for closer analysis here is the one reported by Karlsson et al.(1993 a,b), and Eriksson et al., (1997, 1998, 2002), Eriksson &amp;amp; Karlsson (2000, 2001), and Eriksson (2000, 2002). Most papers and a summary can be found in the PhD thesis of Eriksson (2003). The papers are based on results from two experiments in one and the same test rig. The first set of measurements covered a comparatively long interval in streamwise position but were restricted to two velocity components, meaning that the turbulent kinetic energy could not be determined. The resulting data set was reported in Eriksson et al. (1998) and Karlsson et al. (1993a, 1993b), and are available in the ERCOFTAC Data Base<del style="font-weight: bold; text-decoration: none;">.</del>[#<del style="font-weight: bold; text-decoration: none;">_ftn2 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;'''&lt;span lang=&quot;EN-US&quot;&gt;</del>[2]<del style="font-weight: bold; text-decoration: none;">&lt;/span&gt;'''&lt;/span&gt;</del>] These data were used as a test case in the ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling in Paris, 1996 and in Delft, 1997.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The test case chosen for closer analysis here is the one reported by Karlsson et al.(1993 a,b), and Eriksson et al., (1997, 1998, 2002), Eriksson &amp;amp; Karlsson (2000, 2001), and Eriksson (2000, 2002). Most papers and a summary can be found in the PhD thesis of Eriksson (2003). The papers are based on results from two experiments in one and the same test rig. The first set of measurements covered a comparatively long interval in streamwise position but were restricted to two velocity components, meaning that the turbulent kinetic energy could not be determined. The resulting data set was reported in Eriksson et al. (1998) and Karlsson et al. (1993a, 1993b), and are available in the ERCOFTAC Data Base [<ins style="font-weight: bold; text-decoration: none;">[UFR 3-10 References</ins>#<ins style="font-weight: bold; text-decoration: none;">ftn2|</ins>[2] ]<ins style="font-weight: bold; text-decoration: none;">]. </ins>These data were used as a test case in the ERCOFTAC/IAHR Workshops on Refined Turbulence Modelling in Paris, 1996 and in Delft, 1997.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The repeat experiment was designed and performed to supplement the first data set with three-component measurements at a few streamwise positions in the developed region of the flow. It was also designed to achieve very high spatial resolution for improved near-wall data. Results from the repeat experiment have been reported in e.g. Eriksson &amp;amp; Karlsson (2000), Eriksson &amp;amp; Karlsson (2001) and Eriksson et al. (2002).</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The repeat experiment was designed and performed to supplement the first data set with three-component measurements at a few streamwise positions in the developed region of the flow. It was also designed to achieve very high spatial resolution for improved near-wall data. Results from the repeat experiment have been reported in e.g. Eriksson &amp;amp; Karlsson (2000), Eriksson &amp;amp; Karlsson (2001) and Eriksson et al. (2002).</div></td></tr> </table> David.Fowler https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=3945&oldid=prev David.Fowler: /* Review of UFR studies and choice of test case */ 2009-03-08T10:05:34Z <p><span dir="auto"><span class="autocomment">Review of UFR studies and choice of test case</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:05, 8 March 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l37">Line 37:</td> <td colspan="2" class="diff-lineno">Line 37:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The literature on wall jets is extensive, almost immense. Twenty years ago, at the time of the cornerstone reviews by Launder and Rodi (1981, 1983), well over two hundred experimental studies had been published. There were, however, at that time still a lot of unknowns and unresolved issues in relation to the turbulent wall jet.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The literature on wall jets is extensive, almost immense. Twenty years ago, at the time of the cornerstone reviews by Launder and Rodi (1981, 1983), well over two hundred experimental studies had been published. There were, however, at that time still a lot of unknowns and unresolved issues in relation to the turbulent wall jet.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] and [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent. <del style="font-weight: bold; text-decoration: none;">&lt;/sub&gt;&lt;/sub&gt;</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] and [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td></tr> </table> David.Fowler https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=3941&oldid=prev David.Fowler: /* Review of UFR studies and choice of test case */ 2009-03-08T10:04:40Z <p><span dir="auto"><span class="autocomment">Review of UFR studies and choice of test case</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:04, 8 March 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l37">Line 37:</td> <td colspan="2" class="diff-lineno">Line 37:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The literature on wall jets is extensive, almost immense. Twenty years ago, at the time of the cornerstone reviews by Launder and Rodi (1981, 1983), well over two hundred experimental studies had been published. There were, however, at that time still a lot of unknowns and unresolved issues in relation to the turbulent wall jet.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The literature on wall jets is extensive, almost immense. Twenty years ago, at the time of the cornerstone reviews by Launder and Rodi (1981, 1983), well over two hundred experimental studies had been published. There were, however, at that time still a lot of unknowns and unresolved issues in relation to the turbulent wall jet.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent. &lt;/sub&gt;&lt;/sub&gt;</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] <ins style="font-weight: bold; text-decoration: none;">and </ins>[[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent. &lt;/sub&gt;&lt;/sub&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td></tr> </table> David.Fowler https://kbwiki.ercoftac.org/w/index.php?title=UFR_3-10_Description&diff=3940&oldid=prev David.Fowler: /* Review of UFR studies and choice of test case */ 2009-03-08T10:04:19Z <p><span dir="auto"><span class="autocomment">Review of UFR studies and choice of test case</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:04, 8 March 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l39">Line 39:</td> <td colspan="2" class="diff-lineno">Line 39:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent. &lt;/sub&gt;&lt;/sub&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Launder and Rodi (1981, 1983) summarized the work on turbulent wall jets up to 1980. They pointed to, among other issues, the measurement of the wall shear stress, ω&lt;sub&gt;w&lt;/sub&gt;, as a vexing problem, the lack of definitive data sets on [[Image:U3-10d32_files_image004.gif]] [[Image:U3-10d32_files_image006.gif]], and that none of the few sets of near-wall (y &lt;span lang=&quot;EN-US&quot;&gt;&lt;font face=&quot;Symbol&quot;&gt;&amp;lt;&lt;/font&gt;&lt;/span&gt;y&lt;sub&gt;m&lt;/sub&gt;) data for [[Image:U3-10d32_files_image008.gif]] was convincing. Figure 2, taken from Launder and Rodi (1981), illustrates the amount of spread in the then existing turbulence data. Moreover, turbulence data for the very near-wall region were non-existent. &lt;/sub&gt;&lt;/sub&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of <del style="font-weight: bold; text-decoration: none;">''' </del>[[Image:U3-10d32_files_image012.gif]]in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals. <del style="font-weight: bold; text-decoration: none;">''' </del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Further work relating to the plane jet in still surroundings was published during the 1980´s, Nizou (1981), Nizou et al. (1986)[#_ftn1 &lt;span class=&quot;MsoFootnoteReference&quot;&gt;&lt;span lang=&quot;EN-US&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;], Schneider (1987, 1994), Kobayashi &amp;amp; Fujisawa (1982) and Fujisawa &amp;amp; Kobayashi (1987). Notable here is the work of Schneider, who was the first to use laser-Doppler velocimetry (LDV) for turbulence measurements in the turbulent wall jet. His measurements indicated significantly higher values of [[Image:U3-10d32_files_image010.gif]]over the whole flow and significantly higher values of [[Image:U3-10d32_files_image012.gif]] in the outer region, as compared to earlier hot-wire data. He attributed this to problems connected with the use of hot wires in regions with instantaneous flow reversals.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Because of the persisting gaps in the knowledge of the turbulent wall jet, the work by Karlsson and Eriksson was initiated around 1990. It was explicitly aimed at producing high-quality turbulence data, with special attention to the near-wall region. A secondary objective was to provide a data set suitable for validation of numerical simulations. LDV was the obvious choice for measurement technique due to its superiority when taking turbulence data close to a wall, and its potential to yield accurate results even in very high turbulence intensity flows.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Because of the persisting gaps in the knowledge of the turbulent wall jet, the work by Karlsson and Eriksson was initiated around 1990. It was explicitly aimed at producing high-quality turbulence data, with special attention to the near-wall region. A secondary objective was to provide a data set suitable for validation of numerical simulations. LDV was the obvious choice for measurement technique due to its superiority when taking turbulence data close to a wall, and its potential to yield accurate results even in very high turbulence intensity flows.</div></td></tr> </table> David.Fowler