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-   -   Turbulence initialization!!! (https://www.cfd-online.com/Forums/main/188742-turbulence-initialization.html)

Akanksha90 June 6, 2017 05:12
Turbulence initialization!!!
 
What is turbulence initialization only? How is it different from the turbulence applied for the whole simulating time? I tried to compare the results with laminar and I found them exact! Then what is the use of this initialization only?
Thanks

venturi June 6, 2017 06:47
The numerical methods need an initial guess, either transient or stationary. That's why you need initialization values for the turbulence.

SPH_CFD June 6, 2017 07:00
Quote:
Originally Posted by Akanksha90 (Post 651849)
What is turbulence initialization only? How is it different from the turbulence applied for the whole simulating time? I tried to compare the results with laminar and I found them exact! Then what is the use of this initialization only?
Thanks
If you use FLUENT, hybrid scheme for initialization is the best way. If you don't have information and cannot use hybrid, use value from inlet. This is just a "guess" for numerical solution


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