which settings is the best for fvScheme(specially for divSchemes ) and fvSolution ?

mechy · July 30, 2013, 02:41

Hi All
as you know, there is many options for divSchemes, laplacianSchemes, and so on ...

also there is many linear solver such as: GAMA, smoothsolver and PCG/PBiCG

In OpenFoam forum there is not a good thread to explain that how we can select a good scheme and solver for different problemes

please share your information about different options of fvScheme and fvSolution and compare them and explain which is the best for a specific problem

Best Regards

elvis · July 30, 2013, 05:02

Hi,

http://www.openfoamworkshop2013.org/...rvojeJasak.tar Discretisation Best Practice for Industrial CFD with OpenFOAM
might be a good read

mechy · July 30, 2013, 07:18

Hi Elvis
yes, it is a good document
But I want to collect the suitable scheme for each different problem

for example when we should use GAMG, smoothSolver or BiCG solvers ?
or in divSchemes when we should use the bellow schemes for div(phi,U) ?

div(phi,U) Gauss upwind;
div(phi,U) Gauss limitedLinearV 1;
div(phi,U) Gauss linearUpwind grad(U);
and in similar way for gradSchemes and laplacianSchemes

Best Regards

July 30, 2013, 02:41	which settings is the best for fvScheme(specially for divSchemes ) and fvSolution ?	#1
mechy Senior Member Join Date: Jun 2011 Posts: 163 Rep Power: 14	Hi All as you know, there is many options for divSchemes, laplacianSchemes, and so on ... also there is many linear solver such as: GAMA, smoothsolver and PCG/PBiCG In OpenFoam forum there is not a good thread to explain that how we can select a good scheme and solver for different problemes please share your information about different options of fvScheme and fvSolution and compare them and explain which is the best for a specific problem Best Regards Makkus likes this.

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July 30, 2013, 05:02		#2
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	Hi, http://www.openfoamworkshop2013.org/...rvojeJasak.tar Discretisation Best Practice for Industrial CFD with OpenFOAM might be a good read

July 30, 2013, 07:18		#3
mechy Senior Member Join Date: Jun 2011 Posts: 163 Rep Power: 14	Hi Elvis yes, it is a good document But I want to collect the suitable scheme for each different problem for example when we should use GAMG, smoothSolver or BiCG solvers ? or in divSchemes when we should use the bellow schemes for div(phi,U) ? div(phi,U) Gauss upwind; div(phi,U) Gauss limitedLinearV 1; div(phi,U) Gauss linearUpwind grad(U); and in similar way for gradSchemes and laplacianSchemes Best Regards