Compressible and Incompressible flow modelling

- September 23, 2023 at 6:35 am
  
  Rachit Bundiwal
  Subscriber
  
  Hii , i am modelling a multiphase VOF problem and in it i need to run air as compressible and water as incompressible in a pressure based solver . can anyone help me out how to do that ?.
- September 25, 2023 at 2:45 pm
  
  SRP
  Ansys Employee
  
  Hi,
  You need to air as a primary phase since it is compressible for better solution stability.
  Can you please explain in more detail what exactly problem you are facing while modeling?
  Thank you.
- October 3, 2023 at 9:13 am
  
  Rachit Bundiwal
  Subscriber
  
  Hi thanks for reply , i am trying to simulate a swirl flow using K-e RNG , using velocity inlet as BC , for both the inlets . but the problem arises during the initialization , when primary inlet is selected it is not showing it . And showing absurd values . Any resons for that ?
- October 3, 2023 at 12:47 pm
  
  Rob
  Forum Moderator
  
  You may need to rethink how you initialise the problem. Pictures will help us understand what you're up to.

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