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Old   December 12, 2006, 07:14
Default Problem with Dynamic Mesh and Fluent
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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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