July 3, 2021 at 9:19 pmNimaNZSubscriber
As in LES the TKE and TDR are not provided I have to calculate them through the CFF for the sampling process.
I can calculate the resolved TKE by: (rmse-x-velocity ^ 2 + rmse-y-velocity ^ 2 + rmse-z-velocity ^ 2) / 2
But how can I calculate the modeled TKE in the WALE SGS model to obtain the total TKE as TKE_tot=TKE_resolved+TKE_modeled
And how about the TDR?
I want these two values for obtaining the Lenght Scale of Turbulence as L=(K^3/2)/epsilon
I would appreciate any help or suggestion.
ThanksJuly 5, 2021 at 8:55 amJuly 5, 2021 at 2:00 pmNimaNZSubscriberJuly 5, 2021 at 3:30 pmDrAmineAnsys EmployeeWhat about just using the formula I posted to be independent from the length scale (sma constant * cube root of volume the default is 0.1 and 0.325 for wale)? I will remove the picture from the help you are referring to. The length should be the
July 5, 2021 at 4:32 pmNimaNZSubscriberSure, if I use that formula, should I add the CFF for sampling? or I can use the results of default sampling variables?
July 6, 2021 at 6:21 amDrAmineAnsys EmployeeYes to get the time average value. Unsteady statistics are anyhow required to get the RMSE to build-up the resolved part.
July 6, 2021 at 6:29 amNimaNZSubscriberThanks a millionJuly 6, 2021 at 8:55 amDrAmineAnsys EmployeeYou want to give me a million :) ?
July 6, 2021 at 9:36 amNimaNZSubscriberwell if I get this project published, why not? :))
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