July 20, 2020, 16:19
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[OpenFOAM-v1912] How long does LES simulation of SurfaceMountedCube take usually?
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#1
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Senior Member
Sultan Islam
Join Date: Dec 2015
Location: Canada
Posts: 145
Rep Power: 11
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Hello everyone!
I am going through some validation studies as a form of learning how to use and understand CFD software. I am running the SurfaceMountedCube sample case which is a PimpleFOAM LES case. Since I don't dual boot I am using VMWare with 6 cores and 6GB of RAM allocated to it. I am running on a laptop which has a in i7 7700HQ and 16GB RAM. By default the same case is set to run on 8 processors. Since I don't have 8 cores to allocate, I decided to modify it to use 6.
Here is my edited DecomposeParDict
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1912 |
| \\ / A nd | Website: www.openfoam.com|
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
note "mesh decomposition control dictionary";
object decomposeParDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
numberOfSubdomains 6;
method hierarchical;
coeffs
{
n (6 1 1);
}
// ************************************************************************* //
So its been around 33hrs with a current time at 8.2seconds. The simulation should go on till 100 seconds with a time increment of 0.002sec. I am wondering if its slow because of my hardware or is it normally a long simulation?
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