[Roland R]

Hello,

I would like calculate a screw compressor and I need to have the forces acting at the bodies. As far as I know, the immersed solid method can be applied to move and rotate the solids but it is not applicable to evaluate the acting forces, moments.

What kind of method could you suggest to solve this problem? (The mesh deforming method would be too complacated, I think.)

Thank your help and suugestions;
Roland

[ghorrocks]

Immersed solid is by far the easiest way to do this type of a simulation. Have a look at the compressor tutorial for how to set it up.

[Roland R]

Originally Posted by ghorrocks

Immersed solid is by far the easiest way to do this type of a simulation. Have a look at the compressor tutorial for how to set it up.

OK, but can I evaluate all forces acting on bodies exactly? There are forces from fluid flow and forces from the mechanical interaction (between bodies). These forces result the summa forces at bearings which I should have. Can I calculate all of these forces with immersed solids method?

[ghorrocks]

Bodies cannot interact with immersed solids.

If the bodies both have fluid forces and mechanical interaction forces then this is a MUCH more difficult simulation. So much more difficult that I would recommend you consider whether it is worth it. Can the forces be separated? Then you can do an immersed solid simulation to get the fluid forces and a FEA simulation to get the mechanical forces.

[fiko]

Hey Ronald,
Can you handle it this problem? I have same problem now.