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-   -   Solver settings-GMO-rotating coupled motion-very low reynolds no. (http://www.cfd-online.com/Forums/flow-3d/72684-solver-settings-gmo-rotating-coupled-motion-very-low-reynolds-no.html)

doctsh February 14, 2010 23:01

Solver settings-GMO-rotating coupled motion-very low reynolds no.
 
Hello everyone.

I have a flow3d simulation with a GMO model rotating with very high viscous environment and coupled motion in low reynolds number. I have tried with all the settings in numerics which fails. It says convective flux exceeded or starting with smaller time step or starting with small omega.

I am new to CFD, can anybody help me what settings/numerics I should use to get simulation done? (like maximum/minimum time step, explicit/implicit, GRES or etc..)

Thanks in advance

ck5285 February 15, 2010 23:42

Hi i also have a similar experience that Flow-3D have difficulty in solving high viscosity fluid (>2Pa-s) problem. Thus would like to understand how the expert solve this kind of problem here. :)


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