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-   -   Porous domain vs Subdomain General Momentum Source (http://www.cfd-online.com/Forums/cfx/26684-porous-domain-vs-subdomain-general-momentum-source.html)

alvio November 18, 2008 16:37

Porous domain vs Subdomain General Momentum Source
 
Dear All, I have find an interesting fact. If I set Darcy equation Source = -(Viscosity/Permeability)*Velocity/Porosity as a General Momentum Source, the results I obtained are not logical and very different from porous domain with the same data. Does anyone have a comment on this? Alvio

alvio November 18, 2008 16:44

Re: Porous domain vs Subdomain General Momentum So
 
Hi, the differences in the results were due to the fact that I was using Velocity in standard frame instead of simply the velocity (I have relative motion between the domains)


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