permeable patch for boundary condition -- CFD Online Discussion Forums

July 3, 2015, 08:56	permeable patch for boundary condition	#1
DrFloyd New Member Join Date: Oct 2014 Posts: 24 Rep Power: 11	Hi all, I'm studying a cylinder with at bottom side a moving wall (piston) and on the top side a permeable patch that should allows the entry and the exit of air flow, following the piston law. My question is about the type of bc to use for the permeable patch on the top side. Any suggestion? Thank you in advance for your attention.

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