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-   -   UDF for pulsing flow. (http://www.cfd-online.com/Forums/fluent/28187-udf-pulsing-flow.html)

J. Keays February 1, 2001 10:19

UDF for pulsing flow.
 
Hi,

Would anyone have a udf that allows me to place a pulsatile flow at the exit from my pump, which is also elliptical in profile? I am modelling a single balded pump, so there is a large pressure pulse in each revolution. I have successfully implemented a udf to allow for this pulsing effect, but I would like ot make it so that the velocity profile is parabolic at the exit rahter than flat as is the case with the udf. So, how do I implement a parabolic profile on to a pulsing flow? Needless to say, the problem is been run unsteady.

thanks,

J.


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