I am trying to simulate the st
I am trying to simulate the steady turbulent fluid flow through Porous region in a converging-diverging pipe. The porous media extend from the end of diverging section to start of converging section as showing in image http://www.cfd-online.com/OpenFOAM_D...ges/1/8371.jpg .
I am using rhoImplicitPorousSimpleFoam
k-Epsilon model is used
mass flow Inlet = 0.417 kg/s
Total Temperature = 811K
Pressure Outlet = 15000 Pa (gauge pressure)
ThermoPhysical properties are same in both fluent and openfoam.
air 1 28.966 1006.43 0 1.789e-05 0.74417
Porous Region coeff
i j k
d =4.67e+07 4.67e+09 4.67e+09
f = 10 1000 1000
Under steady state , fluent show a temperature range of 809-811K , while in openfoam this range extend form 791-811 K . as showning fig http://www.cfd-online.com/OpenFOAM_D...ges/1/8372.jpg and http://www.cfd-online.com/OpenFOAM_D...ges/1/8373.jpg
AS wall is insulated , and there is no such energy loss, such large temperature drop should not be there logically.
However Other variable as pressure, velocity show the trend and range same as in fluent .
Can anyone explain this behavior or point out where am i wrong in setting case ?
The same like me
How have you solved the problem?
I have the same problem with porous media.
My pressure and velocities are very similar to the results of fluent, but my temperature field is looking different.
I used OpenFoam and I have a problem same as you.
Could you describe to me pls.
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