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3D FEM computations

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Old   January 28, 2007, 08:34
Default 3D FEM computations
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raju
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I am trying to solve 3D NS steady state problems using FEM. I am familiar using only direct solver based on frontal methods. But memory is becoming a serious limitation. I am unable to solve mesh sizes larger than 30x30x30.

I did not have good experience using iterative solvers. For the fully velocity-pressure formulation, ILU solvers doesn't seem to work. Any suggestions?

Or should I go for projection methods. Could anybody suggest me some iterative solvers which can be used for FEM problems.

Thanks in advance.

Raju.
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