how to set the porous boundary condition
 

I want to set the porous zone to have the filter character,but I do not know how to set it.

Re: how to set the porous boundary condition
 

If I understand your intention, you are trying to use a porous medium to trap particles in tour simulation. You can't do this with FLUENT, which models porous media as an additional sink term on the momentum equation.

Re: how to set the porous boundary condition
 

Use the Porous Jump BC and set the DPM condition to "Trap"