A new wall model for transitional flows is applied to the wall-modeled large-eddy simulation of the Klebanoff (fundamental) and bypass transition mechanisms, continuing an effort to improve computational efficiency by mitigating resolution requirements for the disturbances upstream of transition. Comparison with direct-numerical simulation results shows good agreement in the region prior to transition, but agreement during and after transition is not as good as previous wall-modeled large-eddy simulations of the Herbert (subharmonic) transition mechanism using this wall model. This is apparently due to weaknesses in the modelling of the transition process itself.
WMLES of K-Type and Bypass Boundary-Layer Transition
AIAA SciTech Forum ; 2022 ; San Diego, CA, US
Aufsatz (Konferenz)
Keine Angabe
Englisch
WMLES of K-Type and Bypass Boundary-Layer Transition
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