The unsteady flowfield about the ONERA-The French Aerospace Lab/Airbus SAS LAGOON two-wheel landing-gear configuration and the associated aerodynamic noise generation are computed using a hybrid approach in which the flowfield is provided by a lattice-Boltzmann simulation, and the noise radiation is computed using the Ffowcs-Williams-Hawkings analogy. A detailed validation study is carried out, following the guidelines of the second AIAA workshop on Benchmark Problems for Airframe Noise Computations and using the complete experimental database for detailed comparisons. The effect of grid resolution on both near- and far-field results is investigated, showing the physical consistency of the numerical model. In addition, an assessment of the numerical prediction is carried out by computing the maximum perceived noise level along a nominal approach trajectory. Finally, an unsteady flow mechanism involving the onset of cavity modes in the two facing rim cavities is analyzed in detail and correlated with the generation of tonal noise components.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Lattice-Boltzmanii Aeroacoestlc Analysis of the LAGOON Landing-Gear Configuration


    Contributors:

    Published in:

    AIAA Journal ; 52 , 6 ; 1232-1248


    Publication date :

    2014


    Size :

    17 Seiten, Bilder, Tabellen, 35 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Lattice–Boltzmann Aeroacoustic Analysis of the LAGOON Landing-Gear Configuration

    Casalino, Damiano / Ribeiro, André F. P. / Fares, Ehab et al. | AIAA | 2014


    CFD/CAA Analysis of the LAGOON Landing Gear Configuration

    Ribeiro, Andre F. / Casalino, Damiano / Fares, Ehab et al. | AIAA | 2013


    Simulations of LAGOON landing-gear noise using Lattice Boltzmann Solver

    Sengissen, Alois / Giret, Jean-Christophe / Coreixas, Christophe et al. | AIAA | 2015


    Acoustic Prediction of LAGOON Landing Gear: Cavity Noise and Coherent Structures

    Ricciardi, Tulio R. / Wolf, William R. / Speth, Rachelle | AIAA | 2018