Flow in the rotating tube

- October 17, 2023 at 6:45 pm
  
  sapkotadpak
  Subscriber
  
  Hi I have a rotating tube which has outer diameter of 10mm and inner diameter of 7mm. The tube rotates with 5rpm. I wanna simulate the flow inside this tube. Could you please suggest me any tutorials for this? Since the tube is rotating which bc should I use in walls?
  I tried using axissymetric simulation but I didn't see the option for using gravity in y-direction. My tube is horizontal.
- October 18, 2023 at 8:54 pm
  
  Federico Alzamora Previtali
  Ansys Employee
  
  If you're interested in steady-state calculation, I would suggest using a Moving Reference Frame: 10.2. Flow in Single Moving Reference Frames (SRF) (ansys.com)
  If you want simulate the transient behavior from the rotation, then you can use a Dynamic Mesh: 12.6. Using Dynamic Meshes (ansys.com):

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