moving wall?

Hi everyone,

I wish to know does the model's wall boundary moving (with time), anyone know how to check on this?

For further description,
In the model, i used moving mesh coupled with fluid flow physics and the wall is set to no slip condition (i suppose to hv both moving and no slip condition). In the result, I can see wall displacement in spatial frame (although it does not set as moving wall).

Now I am not sure - the movement that I saw in the result is actually the displacement of moving mesh only or both (mesh and wall) in this setting?

In v4.2a, it only allows me to choose either no slip or moving wall under wall boundary condition but not both.
I tried with moving wall only by setting the same velocity as moving mesh velocity, but convergence errors appear.


Thanks a lot!