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-   -   ask help about flapping wing UDF (http://www.cfd-online.com/Forums/fluent-udf/71319-ask-help-about-flapping-wing-udf.html)

aeropeng December 24, 2009 23:09

ask help about flapping wing UDF
 
Hi
I want to make a Dynamic Mesh for flapping wing.It has three DOF, including Positional angle, Elevation angle and Attack angle.Positional angle and Elevation angle can be rotated by axis Z and axis Y.But the rotation axis of Attack angle is along the flapping wing spanwise , varies with time.
I want to know how can I define the rotation axis of Attack angle in UDF, and set counterpart in Fuent.
Thanks.

Best wishes
Peng


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