CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CFX (http://www.cfd-online.com/Forums/cfx/)
-   -   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
 
1 Attachment(s)
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


Thanks for your inputs

ghorrocks April 18, 2013 18:49

Good question. I do not know so cannot help you. If it is not described in the documentation then I suspect you will have to discuss it with ANSYS support.


All times are GMT -4. The time now is 14:57.