[Whyman]

Hi everybody,

I have this problem.

I'm trying to run an Fsi simulation, with a modified solver, which moves the mesh and the geometry on the basis of the dynamic mesh, like interDynFoam.

My problem is that when i launch the simulation, the variable alpha1 is greater than 1. I tried various solutions but i still can fix the problem.

You can see attached the difference between a fixed geometry/mesh and a moving geometry/mesh, for the same case. Alpha1 value is different.

Why?

Could you help me, please?

Thank you
Stefano