[whiz]

Hi, all,
I am trying to simulate a case in which I include the porous media.

I meet a problem: the mass flowrate from CFD is always larger than the measured data.
So I did a very simple case:
1. air with variable properties flow through a pipe.
2. All the domain is porous, and I defined the permeability and inetial coefficient.

Inlet: pressure and temperature
outlet: pressure

Then I compare the mass flowrate from FLUENT with that from Darcy-Forchheimer equation. The FLUENT software always over predict the mass flowrate.

Can anybody help me explain this? overcome this problem?......
Regards,