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Implementation of stability-based transition model by means of transport equations

Abstract : A natural laminar-turbulent transition model compatible with Computation Fluid Dynamics is presented. This model accounts for longitudinal transition mechanisms (i.e. Tollmien-Schlichting induced transition) thanks to systematic stability computation on similar boundary profiles from Mach zero to four both on adiabatic and isothermal wall. The model embeds as well the so-called “C1-criterion” for transverse transition mechanisms (i.e. cross-flow waves induced transition). The transition model is written under transport equations formalism and has been implemented in the solver elsA (ONERA-Airbus-Safran property). Validations are performed on three dimensional configurations and comparisons are shown against a database method for natural transition modeling and experiments.
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  • HAL Id : hal-02976703, version 1
  • OATAO : 25911

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Lucas Pascal, Grégory Delattre, Hugues Deniau, Guillaume Bégou, Julien Cliquet. Implementation of stability-based transition model by means of transport equations. AIAA Aviation 2019 Forum, Jun 2019, Dallas, United States. pp.1-17. ⟨hal-02976703⟩

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