This tutorial will provide you with the necessary skills to simulate a porous medium represented by packed beds in Fluent ANSYS. The tutorial will teach you how to calculate the inertial resistance and the viscous resistance using Ergun equation.
Please refer to : "6.2.3.6.8. Using the Ergun Equation to Derive Porous Medium Inputs for a Packed Bed" in Ansys help viewer where the 2 equations needed are listed under 6-19 and 6-20.
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