MRF_Rotation not detected in the flow field

- October 11, 2023 at 10:02 am
  
  CAP_NJ
  Subscriber
  
  Hi together, I have an issue with the MRF model for two domains. I have a rotor ("passage" fluid domain) and a stator ("passge_1" fluid domain) and set up the corresponding mixing plane and domain settings (most of it done by the torbo_workflow), but it seems the rotation is not simulated. This can bee seen on the velocity plot after simulation. The direction in both reference frames are the same. Do have an idea, what I am doing wrong? Thanks in advance and best regards!
- October 11, 2023 at 3:05 pm
  
  Federico Alzamora Previtali
  Ansys Employee
  
  Hello,
  what is the value of twf_omega?
  Also, what Velocity formulation are you using?
  - October 23, 2023 at 8:09 am
    
    CAP_NJ
    Subscriber
    
    I have tried to change the velocity formulation, but it does not change the appearance. Do have any other ideas?
- October 11, 2023 at 3:11 pm
  
  CAP_NJ
  Subscriber
  
  Hi and thanks for your response! I am using absolute velocity formulation and the value of twf_omega is 3500 rev/min or 366.52 rad/sec
- October 23, 2023 at 8:07 am
  
  CAP_NJ
  Subscriber
  
  Does anyone has an idea on understanding this? I dont know what to try next.
- October 23, 2023 at 1:02 pm
  
  Federico Alzamora Previtali
  Ansys Employee
  
  Hello,
  I cannot tell what is wrong with your setup from what you are showing. Can you try with 0m/s inlet velocity and see if this way you can see the rotation?

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