Hi,

I have difficulty in defining the effective thermal conductivity of a porous medium. I am working with porous fluid interface where one fluid domain and one porous domain exist. Since porous domain is treated as fluid region, is it possible to define the effective thermal conductivity for the porous domain? I found that, the porous domain and fluid domain are defaulted to have same type of fluid, this has caused the problem. I defined the effective thermal conductivity by creating a new fluid, but once applied, it applied to both the porous and fluid domains. Can someone advise?

[priyatham]

hi
you have to enter thermal conductivity of fluid and solid separately in the material section. Fluent automatically calculates the thermal conductivity

[Martin_Sz]

you can define this (i think) by the interfacial area density by the porous model
or you can make experiments by different mathematical models for porous in CFX