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AXI-SYMMETRIC DOMAIN FOR VERTICAL PIPE.

- September 3, 2021 at 10:59 pm
  
  rajendrapor
  Subscriber
  
  I wish to create an axi-symmetric model for a vertical pipe. How can I make the body to rotate about Y- axis. I saw in many posts that, axis of symmetry is x-axis for fluent and cannot be changed.
- September 6, 2021 at 11:03 am
  
  Rob
  Forum Moderator
  
  You don't move the geometry, you move the world: gravity also has a vector.
- September 6, 2021 at 2:37 pm
  
  rajendrapor
  Subscriber
  
  Thanks! I figured out about the setting of fluent, after getting divergence. Just changed the vector_g to +x direction. Physics remains the same.
  Actually many threads are there where people wrote about getting divergence in axi-symmetric models. This is one of the primary reasons.
- September 6, 2021 at 4:16 pm
  
  Rob
  Forum Moderator
  
  It is, the secondary reason is having mesh in the y<0 position. Just remember that gravity ****, so if "up" is positive x the gravity vector is -9.81 Getting that one wrong is another very common mistake.
- September 7, 2021 at 3:31 pm
  
  rajendrapor
  Subscriber
  
  Thanks again! Very right. Hope this thread may help someone getting some errors due to these reasons.

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