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-   -   Time-averaging of unsteady calculation (http://www.cfd-online.com/Forums/fluent/34857-time-averaging-unsteady-calculation.html)

dieter October 15, 2004 09:46

Time-averaging of unsteady calculation
 
I want the time-averaged values of the velocity derivatives and the turbulent kinetic energy in order to calculate the time-averaged components of the turbulent Reynolds stress tensor. (I perform an URANS calculation) Do I have to programm it myself in an UDF, or are there other ways to obtain it?

Thanks

SAM October 15, 2004 11:28

Re: Time-averaging of unsteady calculation
 
arent fluent RANS are time averaged Navier stokes equations

? i am confused


Lam October 15, 2004 20:39

Re: Time-averaging of unsteady calculation
 
I am sure the values of a steady flow is time-averaging by default. I am not sure whether the values of a unsteady flow is time-averaging or not. If your case is a steady flow, you can acquire the velocity derivatives and turbulent kinetic energy directly from Fluent.


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