4 Replies Latest reply on Mar 21, 2014 2:00 PM by Prabhu Prakash

Rotating region in assembly

Prabhu Prakash Mar 15, 2014 12:18 PM

Dear all,

how to add rotating region in an assembly of centrifugal pump.... I have casing and impeller as a assembly file. Should I add rotating region in inpeller's part file of should I make it as a seperate part. Also what should be the average size limit of rotating region which covers the impeller.

I have tried using global rotating region and used real wall cindition. But the solver stops within 10 iterations with a note "solver has stopped......"

Re: Rotating region in assembly

Jared Conway Mar 16, 2014 12:58 PM (in response to Prabhu Prakash)

Part in assy or multibody part does not matter. Just make sure to component control it out of the simulation.

If the solver fails, you probably aren't following the recommendations for size. Check the solving eng problems doc, tech ref, the swx kb and this forum for the recommendations.
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- Re: Rotating region in assembly
  
  Prabhu Prakash Mar 16, 2014 2:46 PM (in response to Jared Conway)
  
  ya i have made the component out of simulation using component control.... but still the error occurs.
  
  " recommendations for size " - do you mean the mesh size. i have used mesh level of 5. do i need to concentrate in local area meshing....
  
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  - Re: Rotating region in assembly
    
    Jared Conway Mar 18, 2014 12:32 AM (in response to Prabhu Prakash)
    
    mesh size
    size of the rotating region part
    where it encloses
    
    all of that is in the documentation.
    
    before you go too far. setup and run an analysis of just the impeler part in space and see if you can get things to work, then you can move to your full assembly.
    
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    - Re: Rotating region in assembly
      
      Prabhu Prakash Mar 21, 2014 2:00 PM (in response to Jared Conway)
      
      thank you jared.... it worked
      
      " rotating region size " helped me....
      
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