Porous Media Direction Vectors 1 and 2 in 3D model
 

Hello guys,

I have a simple cylindrical model. There are 3 bodies in one part. First and last parts are extended to have realistic values. The inner body is a porous one and I have a polynomial equation and found viscous resistance and C2 coefficient by using FLUENT manual So the fluid flows through in Z direction.

Where should I apply to direction vectors for this simple problem?

Best Regards,