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-   -   Boundary Condition (variable Umax) (http://www.cfd-online.com/Forums/cfx/74584-boundary-condition-variable-umax.html)

Eli April 3, 2010 15:29

Boundary Condition (variable Umax)
 
Hi Pals
I wanna set an expression for inlet boundary condition.
that's it:
u=Umax(t)[1-r^2/R^2]

No problem so far!
but I want it to pick up the Umax(t) from the specified cyclic curve in every timestep!
How can I do that?

thanks alot

ghorrocks April 4, 2010 07:35

If you know the Umax function then write it as a CEL expression. Otherwise use an interpolation function to define the Umax expression.

Eli April 4, 2010 10:19

Thank you soooo much
I appreciate your help.
I think I should use an interpolation function.

Best regards


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