A porous-dominant simulation is one in which the porous drag forces are far greater than the forces of advection and diffusion in the analysis, so the pressure drop at the outlets is mainly due to the porous drag. When you define a porous-dominant simulation, the analysis does not describe the nature of the flow within the porous media itself; only the gross effect of the porous media on the overall simulation downstream and upstream from the porous media is considered. You can define porous sections as part of the model, then attach porous zone definitions to them to specify viscous permeability, inertial permeability, material behavior, porosity, and turbulence behaviors for the porous media. | |||||||||