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define thermal conductivity with DEFINE_PROPERTY in porous media zone

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Old   June 18, 2020, 05:20
Default define thermal conductivity with DEFINE_PROPERTY in porous media zone
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Hi all,

I want to define my own thermal conductivity with DEFINE_PROPERTY macro in porous media zone. I know fluent will calculate thermal conductivity of the cell by volume averaged method.

My question is: If I use DEFINE_PROPERTY to return a thermal conductivity of fluid, then will fluent still use volume averaged method to calculate final conductivity or DEFINE_PROPERTY returns is the final thermal conductivity?

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Weiqiang
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Old   June 18, 2020, 05:32
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Fluent always uses porosity (volume) weighted properties. If you want the property to be given by DEFINE_PROPERTY or if you want it to be same (despite being averaged), then provide same values for fluid as well as solid material.
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Old   June 18, 2020, 05:37
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Quote:
Originally Posted by vinerm View Post
Fluent always uses porosity (volume) weighted properties. If you want the property to be given by DEFINE_PROPERTY or if you want it to be same (despite being averaged), then provide same values for fluid as well as solid material.
Hi, Vinerm,

Thanks very much!

Best

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