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Characterization of the pressure fluctuations within a Controlled-Diffusion airfoil boundary layer at large Reynolds numbers

Abstract : The present investigation targets the generation of airfoil trailing-edge broadband noise that arises from the interaction of turbulent boundary layer with the airfoil trailing edge. Large-eddy simulations, carried out using a massively parallel compressible solver CharLESX, are conducted for a Controlled-Diffusion (CD) airfoil with rounded trailing edge for seven configurations, characterized with a Reynolds number, angle of attack and Mach number. An analysis of the unsteady pressure signals in the boundary layer is proposed in regard to classical trailing edge noise modelling ingredients.
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https://hal.archives-ouvertes.fr/hal-02200478
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Submitted on : Wednesday, July 31, 2019 - 10:39:58 AM
Last modification on : Thursday, June 25, 2020 - 12:06:05 PM

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  • HAL Id : hal-02200478, version 1
  • OATAO : 24063

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Radouan Boukharfane, Julien Bodart, Marc C. Jacob, Laurent Joly, Thibault Bridel-Bertomeu, et al.. Characterization of the pressure fluctuations within a Controlled-Diffusion airfoil boundary layer at large Reynolds numbers. 25th AIAA/CEAS Aeroacoustics Conference (Aeroacoustics 2019), May 2019, Delft, Netherlands. pp.1-17. ⟨hal-02200478⟩

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