CFL Number for Incompressible RANS
Hi all,
I am working on relatively simple simulations using the Incompressible RANS solver paired with SST turbulence modelling. I am trying to understand how the CFL number setting affects the results. Whilst I understand that the physical phenomenon should be steady state, SU2 runs a pseudo time iteration. My questions are: 1. Can the CFL number cause divergence of a solution? 2. Can the CFL number directly affect the solution (convergence, accuracy and result)? 3. How does the adaptive CFL number change? 4. Any good practices for setting the CFL number? It would be greatly appreciated if anyone could help out with these, in order to decrease my fear of solution variation/error/uncertainty in my calculations. Thank you in advance! |
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