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Forum: OpenFOAM Running, Solving & CFD

August 27, 2009, 08:55

Replies: 9

implementing this equation

Views: 2,580

Posted By sandy

Hi isabel, I wake up again. Source term = Sp *...

Hi isabel, I wake up again. Source term = Sp * psi +Sc, so Sp actually is acutally added into diagonal elements in the ldumatrix. So, the pressure equation is still symmetric. If you add a ddt term...

Forum: OpenFOAM Running, Solving & CFD

August 26, 2009, 10:50

Replies: 9

implementing this equation

Views: 2,580

Posted By sandy

Forum: OpenFOAM Running, Solving & CFD

August 20, 2009, 10:05

Replies: 9

implementing this equation

Views: 2,580

Posted By sandy

Hi isabel, in fact, I ever tested in my own code...

Hi isabel, in fact, I ever tested in my own code (not OpenFOAM) that, whether the pressure equation is symmetrical or not, it can been solved very well by PBiCG method. So, please don't worry about...

Forum: OpenFOAM Running, Solving & CFD

August 20, 2009, 06:48

Replies: 9

implementing this equation

Views: 2,580

Posted By sandy

Hi isabel, I just remind it. If you add a source...

Hi isabel, I just remind it. If you add a source term to pdEqn, you think, whether or not this equation can still keep symmetrical?? If not, you should choose PBiCG method to solve it (in system /...

Forum: OpenFOAM Running, Solving & CFD

August 16, 2009, 08:36

Replies: 9

implementing this equation

Views: 2,580

Posted By sandy

Maybe ....

Hi isabel, maybe you can try to add an artifical compression term into this equation as similar as gamma*(1-gamma)*U of the gammaEqn.H? I don't know. But, why you not try it?

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