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-   -   porous media at open foam (http://www.cfd-online.com/Forums/openfoam/119362-porous-media-open-foam.html)

AmirBaqa1987 June 15, 2013 11:18

porous media at open foam
 
Hi all Dears,

I want to consider darcy-forchheimer regime to analyze porous media, so I think I should consider both D and F(viscous and inertial resistance) in porousZone dictionary.
I know that D is inverse of permeability.
but i don't know what should i do for F?

there is another question:

after calculating D and F,should the porousZone dictionary for an isotropic porous media like below?
Darcy
{
d d[0 -2 0 0 0 0 0] (D D D)
f f[0 -1 0 0 0 0 0] (F F F)
}
thanks a lot
sincerely yours,
arjang

Leejay June 17, 2013 05:16

I think Post #2 from this thread answers your question, basically:

Quote:

d= beta/viscocity [1/m^2]
f=2*alpha/density [1/m]
As for your second question, you are correct, this is the set up for isotropic medium.

(d d d)
(f f f)


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