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-   -   Equations for conservative heat transfer at solid-porous interface in CFX (http://www.cfd-online.com/Forums/cfx/116408-equations-conservative-heat-transfer-solid-porous-interface-cfx.html)

 Chander April 18, 2013 09:54

Equations for conservative heat transfer at solid-porous interface in CFX

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Hello,

I need some clarification on the conservation of energy on a solid -porous interface with non-equilibrium porous medium model in CFX. I could not find these equations in CFX documentation. Literature search led me to this paper:

http://www.tandfonline.com/doi/abs/1...07780500430967

This paper mentions the equations for solid-porous interface as in the attached figure. Now

1) Does CFX use same equations for conservation of heat transfer on solid-porous interface?

2) The first equation equates temperature of solid (Ts) with average temperature of porous medium (Tpor). Now as per the third equation Tpor is a volume average of solid and fluid phase temperatures in porous medium. Shouldn't Tpor be a energy averaged temperature? i.e. the third equation modified as :

Tpor = (rho_f*cp_f*epsilon*T_f + rho_s*cp_s*(1-epsilon)*T_s)por