# How to use UDF to define a rotating wing

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 April 7, 2004, 02:13 How to use UDF to define a rotating wing #1 lyf Guest   Posts: n/a Sponsored Links I want to realize the motion of a wing rotating around a axis by using the UDF. I assign the motion with the DEFINE_CG_MOTION macro, but I can't realize the wing(wall) rotate. How to do these? Whether the methods of sliding mesh and dynamic mesh can be use together ? thanks a lot !
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 April 7, 2004, 03:03 Re: How to use UDF to define a rotating wing #2 FJ Guest   Posts: n/a Hi, If it is simple rotating motion, the sliding mesh is the best way because it's very easy . We do only set the angular velocity and the center of origin. If a very complex motion is including, we have to use MDM. I recommend the sliding mesh. Thank you FJ

 April 7, 2004, 03:26 Re: How to use UDF to define a rotating wing #3 lyf Guest   Posts: n/a But I want to make the wing's locomotion in both rotation and linear motion. how to do it ? what is MDM. Thanks

 April 7, 2004, 04:31 Re: How to use UDF to define a rotating wing #4 FJ Guest   Posts: n/a Hi, MDM is a shortened form of the Moving Dynamic Mesh. I think that your motion can be calculated only with moving mesh and the re-meshing is suitable. Thank you FJ

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