I'm trying to simulate a porous media in ansys fluent as a benchmark, i have looked for so many different papers with subject of forward osmosis, they all have solution for flux of water and flux of solutes but in the formula there are couple of terms which i don't figure them out like, difference of osmosis pressure of bulk in draw with osmosis pressure of membrane in draw, which are terms in numerator and denominator of flux formula also relation between porosity and permeability of membrane because in ansys, permeability of membrane is requested but in flux formula the porosity of membrane is used (actually i have found Kozeny-Carman formula describing relation between permeability and porosity, but still not completely sure about it).
if it's possible please guide me what type of paper is suitable for using simulation of porous media in asys fluent and also answers for my doubts for this approach in mentioned paper which i have linked here as following:
Forward osmosis and forward osmosis membranes: https://www.researchgate.net/publication/312660267_Forward_Osmosis_and_Forward_Osmosis_Membranes