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which turbulence model can I use for unsteady flow and high reynolds number?

- March 22, 2023 at 4:08 pm
  
  merveala01
  Subscriber
  
  I need turbulence model for 600000-700000 Reynolds number.
- March 22, 2023 at 5:13 pm
  
  Rob
  Forum Moderator
  
  Most of them will work. I suggest reading the documentation to see what's best suited to the application. If you explain what you're modelling it'll help.
- March 22, 2023 at 5:52 pm
  
  merveala01
  Subscriber
  
  I am working on 2D - airfoil. I want to model at 600000 Reynolds number and unsteady flow. I just want to know, which one gives better results?
  - March 23, 2023 at 12:31 pm
    
    ehsan.sadeghi
    Subscriber
    
    as an starting point spalart-allmaras should work fine. If you are interested in spectral content of turbulence URANS models will not work. Go for SBES, DES or LES which is more expensive than other two models.
- March 23, 2023 at 11:48 am
  
  Rob
  Forum Moderator
  
  Have a look at the tutorials: for aerofoils it's common to use the SST k-w model, but there are others to consider.

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