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STEADY AND UNSTEADY COMPUTATIONS OF FLOWS CLOSE TO AIRFOIL BUFFETING: VALIDATION OF TURBULENCE MODELS

Frederic Furlano
ONERA/DMAE - Department Models for Aerodynamics and Energetics 2 avenue Edouard Belin - F-31055 Toulouse CEDEX - FRANCE

Eric Coustols
Turbulence Modelling and Prediction Unit, Aerodynamics and Energetic Modelling Department, ONERA Toulouse, 2 avenue Edouard Belin, 31055 TOULOUSE Cedex 4, France

Sylvie Plot
ONERA/DSNA - Department for Computational Fluid Dynamics and Aeroacoustics 29 avenue de la Division Leclerc, BP. 72, F-92322 Chatillon CEDEX - FRANCE

Olivier Rouzaud
ONERA/DSNA - Department for Computational Fluid Dynamics and Aeroacoustics 29 avenue de la Division Leclerc, BP. 72, F-92322 Chatillon CEDEX - FRANCE

Abstract

This paper deals with results from on-going research at ONERA, regarding validation of turbulence models for flows close to the onset of airfoil buffeting. Two- as well as three-dimensional steady RANS computations have been applied to few test cases, turbulence closure being achieved using standard transport equation models. First attempts of unsteady Navierr-Stokes computations are also evoked.