how do your results compare to measurements? are you under or over predicting?
In my case I over predict from 10 to 20 degrees |
hi all
I noticed that both in both tutorial cases and posted fvschemes there is always Code:
div(R) Gauss linear; I tried Code:
div(R) Gauss limitedLinear 1; thanks Uli |
Hi! It is for other turbulence model where you use Reynolds stress
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Thanks for your reply.
So using a k-Epsilon model does not involve R? But how is it possible that I get different results after switching the scheme for div(R)? |
You wrote you get the SAME results. You can easily check which schemes you solver uses, just set "default none;", and you will get errors until you define all schemes.
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hi, sorry for the late reply.
I wrote "similar" results since the plots are slightly different. I removed the schemes and it still worked, thanks for your help. |
Hi all,
I have to simulate the case of time varying BC 'uniformValue' for p and T I tried various ways listed here and also from other open-sources, for schemes and solvers, to solve the 'p' with rhoSimpleFoam. whatever may be the conditions applied, the solver is unable to run after third time-step. here I am posting my schemes and solvers. I am thinking that the problem is with these files only because I have cross-checked the p, T and U files and am also able to run 'rhoPimpleFoam' successfully. Please let me know what went wrong. Code:
/*--------------------------------*- C++ -*----------------------------------*\ Code:
/*--------------------------------*- C++ -*----------------------------------*\ |
Quote:
A user can edit those files. Use the following conditions for relaxation factors: relaxationFactors { fields { p 0.3; rho 1; } equations { U 0.7; "(k|epsilon|omega)" 0.7; e 0.7; h 0.7; } } User has an option to edit the "fvSchemes" as well depending on problem statement. Best Luck! |
Quote:
In this case, does it mean that divergence scheme Gauss linearUpwind uses the gradient scheme of respective variables? Thanks, Sunil. |
Quote:
Yes, you are right. It can either use specific scheme listed in the gradient section or just use default scheme. You can also specify your name for the scheme to use it with several variables, for example like this: Code:
gradSchemes |
Great. Thanks a lot Dr. Vakhrushev.
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