The model does not assume that the matrix is made up of porous media. It assumes that it is a system of ‘honeycomb’ type channels. Therefore, the model solves for 1D laminar flow in the channels, and assumes that mass transport does not occur in the lateral directions. Yet, you can model Darcy’s Law, and Brinkmann’s extension to Darcy’s Law, in COMSOL, if your system was porous. There is even an interface for modeling the transfer from free channel to porous media flow.

]]>If the solid matrix’s porous how could we simulate the flow trough it? ]]>