3 Replies Latest reply on Sep 25, 2013 12:01 PM by Derek Feng

    Flow Porous Media

    Derek Feng

      Hard to follow the material on 'Flows in Porous Media' in the flow simulation technical reference guide (Help > SolidWorks Simulation > Flow Simulation Technical Reference). Would like your help on it.

       

       

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      1. Paragraph "If the heat conduction..." second line. I don't know what Eq. (2.1) it refers to. The one above Si is a force/mass term not a heat conduction term. And where is 'c'?

       

      2. The last bullet point, 'can be specified in forms of heat generation rate'; I don't know how to do it to a porous media. I tried to assign a heat source to it but it didn't work.

       

      3. To include heat transfer in the porous media, we need to specify 'h' heat transfer coefficient. I don't know in reality how are we able to get that easily? I think it would be easier to just assign the material to the porous media and have the tool figure it out. It's not going to be accurate but it's better than guessing.

       

       

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      4. Related to 3 regarding the reason I want to use porous media - when detail analysis on a component is done, we can substitute that with a porous media (a volume flow resistance with heat source) in the upper assembly. In that way, the computational time can be save cause we only care about the bulk effect of that component.

          It doesn't seem like the way flow simulation defines the flow resistance in porous media related to the 'porosity'. For example, 'k' has nothing to do with porosity. This is a good thing because I am only interested in the flow resistance part rather than porosity, but I just want to make sure I understand it right.

       

      Thanks.