Porous Baffles

Flow through porous media has a broad range of applications, including ground water flow through soil, air flow through a sponge filter, and flow through a catalytic converter. A porous baffle is essentially a 1D simplification of the porous media model.

You can specify the pressure drop behavior of the porous baffle by defining the viscous resistance and the inertial resistance. The pressure drop is computed as:

where $\alpha$ is viscous resistance, $\beta$ is inertial resistance, $\mu$ is dynamic viscosity, $\rho$ is density, and $V_n$ is the normal velocity through the interfaces.

You can specify the temperature drop behavior by defining the porosity and the thermal resistance.