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=Flow in a 3D diffuser= ==Confined flows==

=Flow and heat transfer in a pin-fin array= ==Confined Flows==

=Hot pulsatile impinging jet in cold cross flow: PJICF= ==Confined flows==

=Flow over curved backward-facing step= ==Semi-confined flows==

=Turbulent flow past a smooth and rigid wall-mounted hemisphere= ==Semi-confined flows==

*Contributor of AC2-07: [[Confined double annular jet]] *Reviewer of AC2-06: [[The confined TECFLAM swirling natural gas burner]]

==Confined flows== ===Underlying Flow Regime 4-19===

==Confined Flows== ===Underlying Flow Regime 4-17===

==Semi-confined Flows== ===Underlying Flow Regime 3-32===

*Contributor of AC2-06: [[The confined TECFLAM swirling natural gas burner]] *Contributor of UFR4-02: [[Confined coaxial swirling jets]]

*Contributor of AC4-02: [[Flow and Sediment Transport in a Laboratory Model of a stretch of the Elbe River *Reviewer of AC5-05: [[Boundary layer flow and dispersion over isolated hills and valleys]]

*Contributor of AC3-11: Downward flow in a heated annulus *Reviewer of AC3-02: Induced flow in a T-junction

**[[Environmental_Flow|Environmental Flow]] <!-- {{#dpl:category=Environmental Flow|format=,***,[[%TITLE%]]\n,}} -->

! UFR !! Underlying Flow Regime !! Contributor || Organisation | [[Confined coaxial swirling jets]] || Stefan Hohmann || MTU Aero Engines

*Reviewer of AC2-07: [[Confined double annular jet]] *Reviewer of UFR1-04: [[Annular coaxial jets, flow and mixing]]

* Best Practice Advice for each of the Underlying Flow Regimes that distils the experience of the European community of specialist | 1-04 || [[Channel flow with wall injection]] || [[Developing channel flow with mass injection through wall|4-07]]

*Contributor of UFR4-09: Confined buoyant plume *Reviewer of UFR4-11: Simple room flow

...ee sub branches of 'Application Areas' (AC) or sub branches of 'Underlying Flow Regimes' (UFR). ...age list extension when the mouse pointer is on 'Underlying Flow Regimes'-'Flow Around Bodies'. The seven extra boxes, representing UFRs, are generated dy

== Semi-confined Flows == === Underlying Flow Regime 3-36 ===

=Flow over curved backward-facing step= ==Semi-confined flows==

= Confined coaxial swirling jets  = Underlying Flow Regime 4-02 <font size="-2" color="#888888">               © copy

= Confined coaxial swirling jets  = Underlying Flow Regime 4-02 <font size="-2" color="#888888">               © copy

== Semi-confined flows == === Underlying Flow Regime 3-36 ===

==Semi-confined Flows== ===Underlying Flow Regime 3-32===

=Particle laden swirling flow= ...aden flows in a coaxial-jet combustor. International Journal of Multiphase Flow, 29 ('''2003''') 1311-1331</div>

==February 2024: Update to AC 1-05 Ahmed body flow== AC 1-05 [[AC_1-05|Ahmed body flow]] has been updated with new LES results added.

= Flow and heat transfer in a pin-fin array = == Confined Flows ==

=Flow and heat transfer in a pin-fin array= ==Confined Flows==

= Confined coaxial swirling jets = Underlying Flow Regime 4-02 <font size="-2" color="#888888"> © copyright ERC

==Semi-confined Flows== ===Underlying Flow Regime 3-32===

== Semi-confined flows == === Underlying Flow Regime 3-36 ===

='''Confined double annular jet'''= ...low is axisymmetric ; it can be qualified as a complex turbulent flow. The flow possesses a central vortex and two small toroidal contra rotating vortices.

== Semi-Confined Flows == === Underlying Flow Regime 3-34 ===

='''Confined double annular jet'''= ...ymmetric double annular flow generated by a burner, and discharging into a confined combustion chamber.

! UFR !! Underlying Flow Regime !! Contributor !! Organisation | [[Stagnation point flow]] || Beat Ribi || MAN Turbomaschinen AG Schweiz

= Flow over curved backward-facing step = == Semi-confined flows ==

='''The confined TECFLAM swirling natural gas burner'''= ...Partner 17, MTU Aero Engines. The AC is defined by the standard burner for confined natural gas flames that was developed within the German TECFLAM co-operatio

!Flow Type !! UFR number!! Underlying Flow Regime !! Contributor !! Organisation | style="background-color:LightGrey;"|[[Blade tip and tip clearance vortex flow]]<!--[[Image:Star_red.jpg]]-->|| style="background-color:LightGrey;"| Micha

=Flow and heat transfer in a pin-fin array= ==Confined Flows==

=Mixing ventilation flow in an enclosure driven by a transitional wall jet= == Confined Flows ==

=Mixing ventilation flow in an enclosure driven by a transitional wall jet= == Confined Flows ==

=Flow over curved backward-facing step= ==Semi-confined flows==

= Curved passage flow = Underlying Flow Regime 4-05 <font size="-2" color="#888888">               © copy

== Semi-confined flows == ===Underlying Flow Regime 3-36===

=Flow in a 3D diffuser= ==Confined flows==

= Flow over an isolated hill (without dispersion) = Underlying Flow Regime 3-13 <font size="-2" color="#888888">               © copy

| style="background-color:LightGrey;"|[[The confined TECFLAM swirling natural gas burner]] || style="background-color:LightGrey; | style="background-color:LightGrey;"|[[Confined double annular jet]] || style="background-color:LightGrey;"| Charles Hirsch

='''The confined TECFLAM swirling natural gas burner'''= ...These recirculation areas are generated by introduction of swirl into the flow. The formation of the recirculation zones is often used in practical techni

==Confined flows== ===Underlying Flow Regime 4-19===

=Swirling flow in a conical diffuser generated with rotor-stator interaction= Confined turbulent swirling flows are encountered in many industrial applications,

The key fluid physics and flow regimes which influence the design or assessment parameters (the jet spread * the ratio of the background (upward) flow velocity to the jet (downward) flow velocity

= Flow in a curved rectangular duct - non rotating = Underlying Flow Regime 4-04 <font size="-2" color="#888888">               © copy

== Semi-Confined Flows == === Underlying Flow Regime 3-34 ===

==Semi-confined flows== ===Underlying Flow Regime 3-36===

== Semi-Confined Flows == === Underlying Flow Regime 3-34 ===

==Confined flows== ===Underlying Flow Regime 4-19===

= Flow over curved backward-facing step = == Semi-confined flows ==

='''Confined double annular jet'''= ...f these sections, whereby the position is oriented in the direction of the flow.

=Flow in a 3D diffuser= ==Confined flows==

=Mixing ventilation flow in an enclosure driven by a transitional wall jet= == Confined Flows ==

=Mixing ventilation flow in an enclosure driven by a transitional wall jet= == Confined Flows ==

Underlying Flow Regime 3-18 <font size="-2" color="#888888">               © copy ...drag which in turn affect vehicle handling and fuel consumption. Internal flow separation in expanding ducts create nonuniformities degrade the life of co

== Semi-confined Flows == === Underlying Flow Regime 3-32 ===

Underlying Flow Regime 4-13 <font size="-2" color="#888888">               © copy ...mbustion chamber of reciprocating engine. It has given rise to interesting flow phenomena such as vortex breakdown, which are not yet fully understood.

=Pressure-swirl spray in a low-turbulence cross-flow= ...uted as the ratio of root mean square cross-flow velocity to average cross-flow velocity.

= Flow in a 3D diffuser = == Confined flows ==

== Confined flows == === Underlying Flow Regime 4-19 ===

...internal office space. The air within the space is stably stratified. The flow is driven by • Mechanically forced flow from the floor-mounted swirl diffusers, which lead to momentum jets that mi

='''The confined TECFLAM swirling natural gas burner'''= ...antities at the inlet LDV measurements near the nozzle have been used. The flow rates of fuel and air needed to be adjusted to match the experimental value

== Semi-confined Flows == === Underlying Flow Regime 3-32 ===

= Confined buoyant plume = Underlying Flow Regime 4-09 <font size="-2" color="#888888"> © copyright ERC

= Confined buoyant plume = Underlying Flow Regime 4-09 <font size="-2" color="#888888"> © copyright ERC

== Confined flows == === Underlying Flow Regime 4-19 ===

='''Confined double annular jet'''= Experimental measurements show that the overall axisymmetry of the mean flow in the combustion chamber is very good. The whole combustion chamber is mod

...structure. Contrary to the diffusion burner presented in AC2-06, which is confined in a combustor, the present configuration features an unconfined lean premi == Flow Geometry ==

== Semi-confined flows == === Underlying Flow Regime 3-36 ===

= Flow and heat transfer in a pin-fin array = == Confined Flows ==

='''The confined TECFLAM swirling natural gas burner'''= • The flow field is well predicted up to axial positions of 30 mm.

= Flow past cylinder  = Underlying Flow Regime 2-02 <font size="-2" color="#888888">               © copy

...mpressor where the tip-clearance effects have the greater influence on the flow structure. Therefore it contributes to the research community original expe To provide as a complete a set of flow field data as possible, measurements accounting for the cascade performance

== Semi-Confined Flows == === Underlying Flow Regime 3-34 ===

...) causing swirling periodic inlet conditions, which leads to an asymmetric flow pattern after the bend. ...passage flow (accelerating)&rsquo; (UFR 4-05) and &lsquo;Swirling diffuser flow&rsquo; (UFR 4-06). Unfortunately UFR 4-04 was missing at the time of writin

== Semi-confined Flows == === Underlying Flow Regime 3-32 ===

Underlying Flow Regime 4-13 <font size="-2" color="#888888">               © copy ...ting high turbulent fluctuations. The modelling of such a complex unsteady flow requires a time dependent simulation.

== Semi-Confined Flows == === Underlying Flow Regime 3-34 ===

=Mixing ventilation flow in an enclosure driven by a transitional wall jet= == Confined Flows ==

== Confined flows == === Underlying Flow Regime 4-19 ===

= Flow over curved backward-facing step = == Semi-confined flows ==

...]]. In essence it consists of a central fuel pipe surrounded by an annular flow of vitiated oxidizer (coflow). The coflow is generated by a secondary burne ...condary burner has a length of about 0.4 m. But in the burner the flame is confined by the outer wall and by a redistribution grid placed horizontally in the c

= Confined coaxial swirling jets  = Underlying Flow Regime 4-02 <font size="-2" color="#888888">               © copy

...likely due to the effects of convective transport. This is consistent with flow entrainment shown in Figure 24. A further contributing factor to the loss o ...ations, or of experimental uncertainties in the determination of the inlet flow rates it is hard to say. Comparisons between the measured and predicted mea

='''The confined TECFLAM swirling natural gas burner'''= ...e stress tensor for various operating points also including the isothermal flow fields can be obtained from the TECFLAM web page via [http://www.csi.tu-dar

= Flow in a 3D diffuser = == Confined flows ==

Underlying Flow Regime 1-07 # <span id="3">Xin, Y., Baroclinic effects on fire flow field, in ''Proc. 4th Joint Meeting of the U.S. Section of the Combustion I

...vice AC7-02#Zang1993|Zang et al., 1993]]) in order to examine the unsteady flow in the realistic airway geometries. In turbulent flow applications, where the time step is kept small enough to capture the small

= Flow in a 3D diffuser = == Confined flows ==

Underlying Flow Regime 4-13 <font size="-2" color="#888888">               © copy ...four strokes (cycle with intake, compression, expansion and exhaust). The flow from the inlet channel enters the chamber tangentially to the lower of its

= Flow and heat transfer in a pin-fin array = == Confined Flows ==

='''Confined double annular jet'''= .../Initial conditions. A carefully controlled amount of water was allowed to flow through the model burner in the test-rig shown in Figure 5. De-mineralized

...ition clearly starts from the shock position. The presence of transitional flow field and shock-boundary layer interaction has a large impact on the heat t ...of the physical phenomena involved in this AC the analysis of some simpler flow regimes could be helpful. The most important are represented by the UFR3-03