Turbulent transition modeling through mechanical considerations

A new transition turbulence model is proposed. The model is based on the computation of the pre-transitional u ' v ' ? due to mean flow shear. The proposed transition model is fully described and verified against standard benchmark test cases. A detailed analysis of its behavior is performed using the ERCOFTAC flat-plate T3A, T3B and T3C test cases. Further, the model is validated in terms of the pre-transitional computed u ' v ' ? in comparison to experiments of ERCOFTAC database. The model presents very good results for bypass transition for flows with and without pressure gradient.

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