poros media question
 

hello evrey body,

I have filter in a duct and i you want to simulate it as porous media,the pressure drop along its thikness (dp=0.8pa),how can i do that?

I wish any suggestion. moh

Re: poros media question
 

You will have to define in your mesh a porous region to represent your filter. When defining your boundary conditions, you will then specify the boundary which represents your porous media. within this menu you will need to specify resistance coefficients which are explained in Section 6.19.6 in the Fluent help files. Specifically, you will use your pressure drop info as the example under the heading: "Deriving the Porous Coefficients Based on Experimental Pressure and Velocity Data"

good luck, let me know if you have further questions after looking at all that

Re: poros media question
 

Hello Brian,

thanks alot for your information.IF you have very simple example for my problem can you send to my email,because i want to know that i did the right thing.

thanks moh

Hi
Iam trying to simulate the heat transfer through porous medium.
Air enters and leaves the porous medium(porous medium-bottom wall is hot).

I have created the model in GAMBIT.I have taken a big domain, have split it in to 3 regions,named the middle region as porous , while left and right of porous are fluids.
If I specify the both the interfaces (left and right of porous medium)as wall in GAMBIT , 2 walls and corresponding wall shadows are formed in fluent. I have specified the fluid as air.Specified the porous medium parameters also.The case is not converging in FLUENT.

If I do not specify the interface in GAMBIT, the case converges.

Which method is correct?