Convergence on CFD

- July 30, 2024 at 3:46 am
  
  boonthiam13
  Subscriber
  
  Hi everyone, I am working on simulating heat ventilation within an enclosure. To achieve convergence in the model, I had to reduce the time scale factor multiple times. Once I reduced it to 0.0002 seconds, the model converged within a few iterations. Is this acceptable? TIA!
- July 30, 2024 at 8:59 am
  
  Essence
  Ansys Employee
  
  Hello,
  You cannot judge the convergence only based on scaled residuals. Please check for the report definitions and net mass flow and net heat flow rates.
- July 30, 2024 at 9:02 am
  
  Rob
  Forum Moderator
  
  No. Run more iterations to ensure it's actually converged and you've not just confused the residual equation maths. How do the fluxes and monitors look?