How to define porous surface in OpenFOAM?
 

Hello,
I have been working on the three-dimensional cavity flow problem for a while. The inner walls of the cavity normally have the "wall" boundary condition. I want to make the aft wall of the cavity porous. How can I do this? Can "Porous media" fulfill my request?
I have marked the surface that I want to define as permeable with red below.

thx in advance..

I still have this problem :/ any ideas ??

I didn't understand the model: the aft wall completely blocks the flow there.

How could that wall be porous in a way that flow can advect further downstream?

dear HPE,
Firstly thank you for your reply. I shared the situation I want to simulate exactly in the image. I just want to make the case here for the back wall. Is it possible?

thanx in advance..

yes, modelling such porosity is possible.

have a look at the below:

porousBafflePressure
explicitPorositySource
interRegionExplicitPorositySource
directionalPressureGradientExplicitSource

porousSimpleFoam
rhoPorousSimpleFoam
interIsoFoam

so is it possible with rhoPimpleFoam?

yes - look for examples of the above utilities.