Cfl_adapt
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In the TestCases\turbomachinery\transonic_stator_2D case I'm trying to run with CFL_ADAPT turned on. I've changed the cfg to what's shown below (files is also attached) but when I run it AFAICT the CFL isn't adjusted at all. Am I missing something.
Also apparently periodic BC and multigrid aren't compatible currently what are useful ways of improving convergence? For this particular case I tried ramping the exit static pressure which had a noticeable positive impact. % Courant-Friedrichs-Lewy condition of the finest grid CFL_NUMBER= 40.0 % % Adaptive CFL number (NO, YES) Default is NO this example changed to YES with appropriate CFL_ADAPT_PARAM CFL_ADAPT= YES % % Parameters of the adaptive CFL number (factor down, factor up, CFL min value, CFL max value ) CFL_ADAPT_PARAM= ( 0.5, 1.2, 20.0, 100.0) |
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The config file is from the SU2 developers; the only thing I've changed is the adaptive CFL settings. This is a turbomachinery analysis of a high pressure turbine nozzle so the boundary conditions are set separately so I doubt the freestream conditions are relevant/important.
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This might help:
REF_DIMENSIONALIZATION= FREESTREAM_PRESS_EQ_ONE |
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