Lattice Boltzmann (LB) and compressible Navier-Stokes (NS) equations based computational fluid dynamics (CFD) approaches are compared for simulating airframe noise. Both LB and NS CFD approaches are implemented within the Launch Ascent and Vehicle Aerodynamics (LAVA) framework. Both schemes utilize the same underlying Cartesian structured mesh paradigm with provision for local adaptive grid refinement and sub-cycling in time. We choose a prototypical massively separated, wake-dominated flow ideally suited for Cartesian-grid based approaches in this study - The partially-dressed, cavity-closed nose landing gear (PDCC-NLG) noise problem from AIAA's Benchmark problems for Airframe Noise Computations (BANC) series of workshops. The relative accuracy and computational efficiency of the two approaches are systematically compared. Detailed comments are made on the potential held by LB to significantly reduce time-to-solution for a desired level of accuracy within the context of modeling airframes noise from first principles.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Lattice Boltzmann and Navier-Stokes Cartesian CFD Approaches for Airframe Noise Predictions


    Contributors:

    Conference:

    AIAA Aviation Forum ; 2017 ; Denver, CO, United States
    AIAA Computational Fluid Dynamics Conference ; 2017 ; Denver, CO, United States


    Publication date :

    2017-06-05


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Lattice Boltzmann and Navier-Stokes Cartesian CFD Approaches for Airframe Noise Predictions

    Barad, Michael F. / Kocheemoolayil, Joseph G. / Kiris, Cetin C. | AIAA | 2017


    Lattice Boltzmann and Navier-Stokes Cartesian CFD Approaches for Airframe Noise Predictions

    Barad, Michael / Kocheemoolayil, Joseph / Kiris, Cetin | NTRS | 2017


    LATTICE BOLTZMANN AND NAVIER-STOKES CARTESIAN CFD APPROACHES FOR AIRFRAME NOISE PREDICTIONS (AIAA 2017-4404)

    Barad, Michael F. / Kocheemoolayil, Joseph G. / Kiris, Cetin C. | British Library Conference Proceedings | 2017


    Lattice Boltzmann for Airframe Noise Predictions

    Barad, Michael / Kocheemoolayil, Joseph / Kiris, Cetin | NTRS | 2017


    AIRFRAME NOISE PREDICTION USING NAVIER-STOKES CODE WITH CARTESIAN AND BOUNDARY-FITTED LAYER MESHES

    Ueno, Yosuke / Ochi, Akio | British Library Conference Proceedings | 2019