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Simulating Perforated Plates That Are Not on Domain Boundaries

Question asked by David Maxham on Dec 10, 2011
Latest reply on Dec 12, 2011 by David Maxham

I'm looking to simulate a perforated plate that is part of an internal subassembly within our electronic unit.  If I understand correctly, the perforated plate feature that's part of the electronics cooling module, must be used on either a fan surface, lid or other surface where an environmental pressure is specified.  That helps for those perforated plates that are on the external surface of our units and when we are modeling internal flows, but we have many situations where the perforated plates are internal, say, part of an EMI subassembly, where the perforated plate feature of Solidworks Simulation cannot be applied?


Any ideas on how to simulate a perforated plate that is internal to the unit?  This problem of using a perforated plate in Solidworks also arises when we have an analysis where we don't want to consider the flow as internal since we want to model the external surfaces of the unit. I've started looking at using a porous material for the internal perforated plate but it seems like a lot of work.  I've been working in Flotherm for the last 12 years so I'm a little familiar with making numerical wind tunnel models of objects, but I'm not sure if the effort will pay off here.  Maybe there's an easier way?