[coms0]

Hi everybody,

I am using ANSYS Fluent to simulate the rotation of a drum (made of titanium as external walls) and filled with water (so basically a rotating cilynder with a water volume inside and titanium external walls).

I 'm having though problems in the rotation settings of the solid external part: after having set the liquid solid interfaces between titanium walls and water volume, in the "setup" when I try to apply the rotational velocity to the solid walls the only way I can do this is to activate the "frame motion" in the solid body (under cell zone conditions) imposing a rotational velocity of 63 rad/s. While in the boundary conditions section, the "momentum" of the solid wall boundary is not active (since it's solid).

But doing this way I noticed that the titanium walls don't rotate, I tried with different settings (making also the water wall boundary rotating), setting the same rotational velocity to the interfaces and other methods but I didn't manage to make the solid walls rotate.

Could you please tell me how I could solve this problem and make the solid body rotate?

Or maybe Fluent doesn't allow rotation of solid geometries?

Thank you in advance for your help.

Best,

P