RWIND 2 Pro brings fresh air to your project. It can apply a permeability to a surface and thus define pressure boundary conditions between the front and back of a porous zone. ☝️
More About RWIND 2:
http://www.dlubal.com/rwind
More Features of RWIND 2:
https://www.dlubal.com/en-US/support-and-learning/support/product-features?family=rwind-simulation
Download the free trial version today and get to know RWIND 2: