[seanmike31]

Hello everyone,

I try to model a moving shock tube, with 3 cubes. On the left the high pressure side, on the right the low pressure side and the one in the center represents a kind of valve to link the two parts.

I merged the two faces of the valve with the faces of the other cubes.
As boundaries conditions, total pressure for the faces merged with the valve.

But I still don't have a pressure transmission between the cubes.
If anyone has an idea,

Thanks.