[vasava]

I am trying to simulate a periodic zone including dynamic mesh.

There is a sphere moving through a cube. The motion of sphere should be periodic so when one sphere leaves from right face another sphere must enter from the left face. I have declared the left and right walls as periodic. But as the sphere reaches right wall I receive 'negative volume' error.

What do you think is missing?

[vasava]

I managed to solve the problem with the mixing plane approach. But it would be nice to see comments with people who have had or solved such problems.

[salman.s]

Dear vasava,

can you explain more how you managed to solve the problem? have you used periodic boundary condition? I would really really appreciate it if you could explain more about your solution. thanks

[ghost82]

I'm also interested in the solution.
I had a similar problem of a water pool where some boxes enter/exit and reenter, but I didn't found a solution.