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March 6, 2008, 03:54 |
CG or AMG Solver
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#1 |
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What is the best solver in Star-CD for incompressible, steady state model?
Is their any information about that? Thanks Norbinou |
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March 6, 2008, 04:13 |
Re: CG or AMG Solver
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#2 |
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Hi
To the best of my knowledge , there is as such no information on which solver has to be used. I will prefer AMG solver as it has some advatages over CG. Actually you can use both solvers alternately and then see the difference in results (in my case I got exactly the same answers) Sachin |
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March 6, 2008, 05:29 |
Re: CG or AMG Solver
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#3 |
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In brief - AMG is much faster for big problems (like 1 million cells and bigger) but requires more memory.
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March 12, 2008, 08:07 |
Re: CG or AMG Solver
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#4 |
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I would add that your result should be the same whatever solver you use. Otherwise the whole CFD would be pretty useless. Good comparison over different solvers could be found in: http://www.amazon.com/Computational-.../dp/3540420746
matej |
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