Bad Orthogonal Quality with Small First Layer Height

- March 12, 2024 at 11:45 am
  
  George Sadler
  Subscriber
  
  Hello,
  I'm trying to simulate a Turbomachinary case using K-Omega SST, I'm trying to target a y plus of <5, which requires a first layer height in the order of 10^-6. When I simulate it with a larger first layer height (10^-3) fluent mesher produces a nice mesh with no issues, but with the required height the minimum orthogonal quality is 7*10^-4. The improve volume mesh task doesn't do anything to help. Any ideas?
  
  Thank you.
- March 13, 2024 at 7:40 am
  
  Keyur Kanade
  Ansys Employee
  
  What is min orthogonal quality?
  To proceed to solver you need to have min ortho quality more than 0.1. If it is the case then you can proceed to solver.
  If you are getting bad quality in boundary layer, please consider refining surface mesh further at the places where you get bad elements.
  Please go through help manual for more details
  Regards,
  Keyur
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