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-   -   Body force in CFX (http://www.cfd-online.com/Forums/cfx/82397-body-force-cfx.html)

enghamed November 25, 2010 02:42

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;

ghorrocks November 25, 2010 07:51

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.

enghamed November 25, 2010 19:09

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

ghorrocks November 27, 2010 05:28

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.


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