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Ansys Learning Forum Forums Discuss Simulation Fluids Finding Lift force in CG motion UDF Reply To: Finding Lift force in CG motion UDF

Rob
Forum Moderator

If you report the force on the airfoil wall (print the return for force[1] ) for some timesteps but use the second block of commands in the UDF what sort of numbers are you seeing relative to what you expect? Also, I can't see a mass in the system - what stops the wing just accelerating upwards?Â