The work presented here forms part of a larger project on Large-Eddy Simulation (LES) of aeroengine aeroacoustic interactions. In this paper, we concentrate on LES of near-field flow over an isolated NACA0012 aerofoil at zero angle-of-attack and a chord based Reynolds number of Rec = 2 × 105. A wall-resolved compressible Numerical Large Eddy Simulation (NLES) approach is employed to resolve streak-like structures in the near-wall flow regions. The calculated unsteady pressure/velocity field will be imported into an analyticallybased scheme for far-field trailing-edge noise prediction later. The boundary-layer mean and root-mean-square (rms) velocity profiles, the surface pressure fluctuation over the aerofoil, and the wake flow development are compared with experimental data and previous computational simulations in our research group. It is found that the results from the wall-resolved compressible NLES are very encouraging as they correlate well with test data. The main features of the wall-resolved compressible NLES, as well as the advantages of such compressible NLES over previous incompressible LES performed in our research group, are also discussed.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Wall-resolved large eddy simulation for aeroengine aeroacoustic investigation



    Published in:

    The aeronautical journal ; 121 , 1242 ; 1032


    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    55.50 Luftfahrzeugtechnik / 55.60 Raumfahrttechnik / 55.50 / 55.60
    Local classification TIB:    275/7040



    Improvement of the Near Wall Treatment in Large Eddy Simulation for Aeroacoustic Applications

    Zhang, Chaofan / Sanjose, Marlene / Moreau, Stephane | AIAA | 2018




    Aeroacoustic investigations of Blade-Vortex Interaction using Large Eddy Simulation

    Ilie, Marcel / Nitzsche, Fred / Matida, Edgar | AIAA | 2008


    Aeroacoustic Investigations of Blade-vortex Interaction Using Large Eddy Simulation

    Ilie, M. / Nitzsche, F. / Matida, E. et al. | British Library Conference Proceedings | 2008