Problem with Dynamic Mesh and Fluent -- CFD Online Discussion Forums

December 12, 2006, 07:14	Problem with Dynamic Mesh and Fluent	#1
Claude Guest Posts: n/a	Hello Everybody, I am a new in this forum. Now I am trying to model gas gun (system enable to accelerate projectile) with Fluent. I am using Dynamic mesh and I am having a big problem to build my numerical model. I hope that somebody can help me. My geometry is a cylinder where I have two regions (one with a higher pressure 18 bar and the other with lower 1 bar) separated by one piston and this piston is moving by UDF. Now I need what boundary conditions that I must to put and what model (or models) I must use? Thank for your help. Kind regards.

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