porous wall in diesel particulate filter (DPF)
 

Hello everybody.

i am a new member and also new with CFD. Hopefully to get advice and guidance from all of you. recently i need to do a project regarding diesel particulate filter (DPF).

http://www.epa.gov/nonroaddiesel/200...ate_filter.gif

my question is, how to make the porous wall? i just used designmodeler, already done fluid domain extraction and wondering to form porous wall between the fluid domain..

your guidance is really appreciated..:)