Wing Aerodynamics Fluent OF 15 comparison

aerothermal · February 9, 2011, 15:04

Hi maddalena,

Now my problem is converged but I am looking to improve the results, mainly the separation point location for the cylinder flow. You were right. Part of the problem was the boundary conditions and part the mesh.

I already converged and validated CFD++ results agains the experimental data for Cp and Nu of a rough cylinder. However, I am struggling to find an accurate configuration for OpenFoam.

Could you post your final fvSchemes and fvSolution?
I may help me

My final results for rhoSimpleFoam will be posted on-line as a wiki when I finished it.

Regards,

Guilherme

maddalena · February 10, 2011, 02:27

Hi,

Quote:

Originally Posted by aerothermal

Could you post your final fvSchemes and fvSolution?

well, everything is posted here. If you want the original files, give me some time since this analysis is two years old and I need to find them on my backup harddisk...

mad

aerothermal · February 11, 2011, 10:30

Hi maddalena,

Could you tell me if your last successful configuration was the one described ?Wing Aerodynamics Fluent OF 15 comparison

What solver and preconditioner did you choose in fvSolution for each variable?

I tried to put Gauss upwind in div((muEff*dev2(grad(U).T()))) but OF1.7 gave a EOF error on that line. If I chosse Gauss linear, it runs OK. What did you use there?

Thanks,

aerothermal

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February 9, 2011, 15:04		#81
aerothermal Senior Member Guilherme da Silva Join Date: Aug 2010 Location: Sao Paulo - Brazil Posts: 104 Rep Power: 4	Hi maddalena, Now my problem is converged but I am looking to improve the results, mainly the separation point location for the cylinder flow. You were right. Part of the problem was the boundary conditions and part the mesh. I already converged and validated CFD++ results agains the experimental data for Cp and Nu of a rough cylinder. However, I am struggling to find an accurate configuration for OpenFoam. Could you post your final fvSchemes and fvSolution? I may help me My final results for rhoSimpleFoam will be posted on-line as a wiki when I finished it. Regards, Guilherme

February 11, 2011, 10:30		#83
aerothermal Senior Member Guilherme da Silva Join Date: Aug 2010 Location: Sao Paulo - Brazil Posts: 104 Rep Power: 4	Hi maddalena, Could you tell me if your last successful configuration was the one described ?Wing Aerodynamics Fluent OF 15 comparison What solver and preconditioner did you choose in fvSolution for each variable? I tried to put Gauss upwind in div((muEff*dev2(grad(U).T()))) but OF1.7 gave a EOF error on that line. If I chosse Gauss linear, it runs OK. What did you use there? Thanks, aerothermal