MODELLING USING POROUS ELEMENT (CPT)

[saurabhsuresh]

I am trying to model a tube through which air passes and at the end of the tube is a porous element. ANSYS 12 has some porous elements in its database.
Can Anyone tell me how we can model this particular porous structure? ....
As in wat all properties will be needed and if u know the procedure, i would greatly appreciate it. The ANSYS help file did not help too much

Thanks