Problem with Dynamic Mesh and Fluent
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.
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