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Effective Conductivity in the Porous Medium

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Old   March 7, 2012, 11:30
Default Effective Conductivity in the Porous Medium
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Andrea Pasquali
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Hi,
I'd like to introduce porous medium conductivity like:

Quote:
K_eff = porosity * K_fluid + ( 1 - porosity ) * K_porous_medium
Did someone already meet this problem?
I'm thinking something like this:

Quote:
read porosity
read K_porous_medium

for cell_ID in mesh
K = Cp*alpha
if cell_ID is in pZones
K = poroisty*Cp*alpha + (1-porosity)*K_porous_medium
Could it be reasonable?
In hEqn.H OpenFOAM looks for:

Quote:
turb.alphaEff
If I implement my "new" K definition, I have to change also the hEqn.H or the turb.alphaEff is automatically revalutated?

Thanks for any advice.

Andrea
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Last edited by andrea.pasquali; March 8, 2012 at 10:36.
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Old   April 17, 2013, 21:06
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Yuri Feldman
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Dear Andrea,
Have you already figured out answer to you question?
If yes, please share it with me.
Many thanks, Yuri
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Old   April 18, 2013, 09:07
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Andrea Pasquali
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Hi Yuri,
I am sorry but I did not go ahead with this topic.
I remember I overcame the problem using different regions and defining the correct K for each one.

Andrea
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