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*ALE_STRUCTURED_MESH_MOTION，How to get the fluid moving？

- March 25, 2025 at 3:19 pm
  
  Tim T
  Subscriber
  
  I used "*ALE_STRUCTURED_MESH_MOTION, OPTION = FOLLOW_GC", I want the mesh to move with the fluid, how should I set an initial velocity for the fluid in the mesh？
- March 28, 2025 at 4:32 pm
  
  Ian Do
  Ansys Employee
  
  Hello Tim,
  For that option, we do not need to "give" the ALE mesh a vel. FOLLOW_GC means that the code will compute the average vel of the ALE mats in the domain. Then move the ALE mesh with that same vel. This saves the users from having to worry about it, an automatic feature.
  Regards,
  Ian Do

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