[Weiqiang Liu]

Hi all,

I am modeling a hydrogen combustion in porous zone with fluent. I used a UDS to solve solid energy equation and also the energy equation of fluid is modified.

For fluid energy equation, I modified thermal conductivity of fluid to an effective thermal conductivity. Specificly, effective thermal conductivity is mass weighted thermal conductivity added with an additional term.

Then I need to define source term for both solid and fluid energy equation and fluid thermal conductivity will be used in the source terms as well.

My question is: for the thermal conductivity emerged in source term, should I should use the value return by DEFINE_PROPERTY which is effective thermal conductivity or the original mass weighted averaged velocity? According to the symbols emerged in paper, it seems like original mass weighted thermal conductivity should be used. However, I am not very sure.

Can anybody give me some suggestions?

Best regards

Weiqiang