Direct Numerical Simulation of the Three-Dimensional Transition to Turbulence in the Incompressible Flow around a Wing - Archive ouverte HAL Access content directly
Journal Articles Flow, Turbulence and Combustion Year : 2003

Direct Numerical Simulation of the Three-Dimensional Transition to Turbulence in the Incompressible Flow around a Wing

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Abstract

The onset of the secondary instability and the successive steps ofthe 3D transition to turbulence are examined in the flow around a wing of NACA0012 section, constant along the spanwise direction. The wing is placed in a uniform flow upstream, at 20° of incidence and at the Reynolds number of 800. The spanwise length is equal to four chords. The objectives of this study are the identification of the three-dimensional transition mechanism and the development of the early stages of turbulence in the present class of unsteady aerodynamic flows. A detailed processing of the DNS signals carried out by an appropriate conditional sampling allows the identification of the physical mechanisms related to the birth of turbulence and to the non-linear interaction with the 3D coherent structures in the near region.

Dates and versions

hal-02612098 , version 1 (18-05-2020)

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Cite

Yannick Hoarau, D. Faghani, Marianna Braza, Rodolphe Perrin, Dominique Anne-Archard, et al.. Direct Numerical Simulation of the Three-Dimensional Transition to Turbulence in the Incompressible Flow around a Wing. Flow, Turbulence and Combustion, 2003, 71, pp.119-132. ⟨10.1023/B:APPL.0000014931.01400.7e⟩. ⟨hal-02612098⟩
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