Body force in CFX
 

Hi,
I want to model tank slosing in ansys cfx 12.1
How should I apply the body force to excite the flow?

Regards;

What body force?

Tank sloshing is usually modelled either by moving the gravity vector, or using a moving mesh to move the model to follow the sloshing motion. Should be no need to specify body forces.

thx for the reply

thats exactly what i need.
how can i change the gravity vector?
and for the complex version how can the mesh be moved?

regards for your help

For moving gravity vector: Instead of using a constant value for gravity use a CEL expression as a function of time.

For moving mesh: Do the moving mesh tutorials.