DNS 1-2 Statistical Data: Difference between revisions
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= Statistical data = | = Statistical data = | ||
==Volume data== | ==Volume data== | ||
Volumetric time averaged statistics are available in the [http://kbwiki-data.s3-eu-west-2.amazonaws.com/index.html?prefix=DNS-1/2/Channel_180/statistics/ database]. The data is stored in multiple files such that each <code>.pyfrs</code> file contains one quantity. The files which are named <code>avg-xxxx.pyfrs</code> can be interrogated following the guidelines in [[lib:DNS_1-2_format| storage format]] section. The statistical quantities listed in section 3 (tables 1 and 2) of the document - [[:File:List_of_desirable_and_minimum_quantities_to_be_entered_into_the_KB_Wiki.pdf| list of desirable and minimum quantities to be entered into the KB Wiki]], are directly provided or can be calculated from those provided following the approach described in the appendix of the document. For example, <code>avg-u.pyfrs</code> is the average streamwise velocity, where as the Reynolds stress, <math>\overline{u'v'}=\overline{uv}-\bar{u}\bar{v}</math>, can be calculated using the data from <code>avg-uv.pyfrs</code>, <code>avg-u.pyfrs</code> and <code>avg-v.pyfrs</code>. | Volumetric time averaged statistics are available in the [http://kbwiki-data.s3-eu-west-2.amazonaws.com/index.html?prefix=DNS-1/2/Channel_180/statistics/ database]. The data is stored in multiple files such that each <code>.pyfrs</code> file contains one quantity. The files which are named <code>avg-xxxx.pyfrs</code> can be interrogated following the guidelines in [[lib:DNS_1-2_format| storage format]] section. The statistical quantities listed in section 3 (tables 1 and 2) of the document - [[:File:List_of_desirable_and_minimum_quantities_to_be_entered_into_the_KB_Wiki.pdf| list of desirable and minimum quantities to be entered into the KB Wiki]], are directly provided or can be calculated from those provided following the approach described in the appendix of the document. For example, <code>avg-u.pyfrs</code> is the average streamwise velocity, where as the Reynolds stress, <math>\overline{u'v'}=\overline{uv}-\bar{u}\bar{v}</math>, can be calculated using the data from <code>avg-uv.pyfrs</code>, <code>avg-u.pyfrs</code> and <code>avg-v.pyfrs</code>. To assist end users, the calculation of turbulent kinetic energy budget is demonstrated in a python script, [http://kbwiki-data.s3-eu-west-2.amazonaws.com/index.html?prefix=DNS-1/2/Channel_180 tke_budget.py]. Any other statistical quantity may be calculated in a similar manner. | ||
==Additional data== | ==Additional data== | ||
Revision as of 10:56, 1 March 2022
Statistical data
Volume data
Volumetric time averaged statistics are available in the database. The data is stored in multiple files such that each .pyfrs file contains one quantity. The files which are named avg-xxxx.pyfrs can be interrogated following the guidelines in storage format section. The statistical quantities listed in section 3 (tables 1 and 2) of the document - list of desirable and minimum quantities to be entered into the KB Wiki, are directly provided or can be calculated from those provided following the approach described in the appendix of the document. For example, avg-u.pyfrs is the average streamwise velocity, where as the Reynolds stress, , can be calculated using the data from avg-uv.pyfrs, avg-u.pyfrs and avg-v.pyfrs. To assist end users, the calculation of turbulent kinetic energy budget is demonstrated in a python script, tke_budget.py. Any other statistical quantity may be calculated in a similar manner.
Additional data
No additional data is available at the moment.
Contributed by: Arun Soman Pillai — Imperial College London
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