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Communication Dans Un Congrès Année : 2020

Database Approach for Laminar-Turbulent Transition Prediction on Heated Wall

Résumé

A database approach is developed to predict laminar-turbulent transition of a boundary layer over a heated wall. This approach is based on the local linear stability theory (LLST). The database method is an expansion of the ONERA’s so-called Parabolas method. Growth rate instabilities are stored in a database indexed on relevant flow parameters. The transition position is determined via the so-called N-factor method. First validations are made on exact stability computations. In the final paper validation will be made on an ONERAD airfoil equipped with heating device where the impact of the wall temperature on laminar-turbulent transition was measured. RANS results for this test case will be compared to experimental data.
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Dates et versions

hal-02443619 , version 1 (17-01-2020)

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Julien Saint-James, Hugues Deniau, Olivier Vermeersch, Estelle Piot. Database Approach for Laminar-Turbulent Transition Prediction on Heated Wall. AIAA SCITECH 2020, Jan 2020, Orlando, United States. ⟨10.2514/6.2020-1035⟩. ⟨hal-02443619⟩

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