[vamsikrishna00]

Hello, my name is Vamsi Krishna and I am an M.Tech student. I am using REEF3D software to perform several studies. I have two questions:
First, is there a code to specify the material properties of concrete, plastic, PVC, etc.?
Second, when specifying porosity using VRANS porous, we need to provide alpha, beta, and grain size. Is there a way to specify only the porosity of a structure without providing these other parameters.

Thank you if anyone can help me with these questions.