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Selection of solvers in 3D problem
Posted 16 lug 2010, 08:39 GMT-4 0 Replies
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I am using two modules- free and porous medium (for fluid flow) and species transport through porous membrane (for mass transport) in a 3 D geometry. I solve first the fluid flow in stationary mode and then use the solution of the velocity profile to calculate mass transport in transient mode. I am using Direct solvers for this analysis.
The velocity profile by the stationary analysis is good however, I obtain a lot of artifacts in the concentration profile even though i use extremly fine mesh generation and also it takes lot of memory and time to solve the process.
Should i try using iterative solvers?. can you please guide me on criteria to select these solvers , preconditioners,smoothers etc ??
Thanks,
Pranay
Hello Pranay Ghosh
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