But if the fluid moves rapidly, you may need to use the Brinkman equation. You could, for example, adequately describe a fluid slowly moving in a porous bed with Darcy’s law. When it comes to describing the velocity and pressure fields inside the system you are analyzing, there are many equations that could be appropriate. We will also cover how to set up both natural and forced convection simulations using these formulations.Ĭompressibility Options for the Navier-Stokes Equations in COMSOL Multiphysics® Here, we’ll discuss the various formulations for fluid flow equations in the COMSOL Multiphysics® simulation software and when it’s best to use each option, paying particular attention to how this selection influences heat transfer analyses. Efficiency, of course, is important when performing such simulations. The numerical analysis of fluid flow and temperature fields can offer valuable insight in many engineering applications.
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