help for DEFINE_CG_MOTION for a flapping airfoil -- CFD Online Discussion Forums

March 5, 2011, 11:16	help for DEFINE_CG_MOTION for a flapping airfoil	#1
M.Sc_Student New Member Join Date: Apr 2010 Posts: 18 Rep Power: 16	Dear Friends I don't know how to write a UDF by the help of DEFINE_CG_MOTION for describe the sinosoidal motion of a flapping airfoil. In the user guide it is not mentioned how we can relate the UDF to the geometry of solid body (here airfoil). Thanks beforehand

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