The current state of the use of large-eddy simulations (LESs) in jet aeroacoustics is reviewed. Various computational techniques are discussed, as well as methods to extend the LES results to the acoustic far field. As the computational power increases and computational techniques mature, LES-based calculations are becoming more realistic by including complicated nozzle shapes and by increasing the Reynolds numbers to approach flight conditions. The LES is now being used for evaluation and the understanding of noise mechanisms from heated or unheated, subsonic or supersonic, and single or multiple jets (for example, twin jets). Also, impinging jets, jet blast deflector surfaces, installation effects, and noise reduction strategies (for example, fluidic injection, plasma actuators, chevrons, and beveled nozzles) are currently being studied and evaluated. Thus, the LES is becoming a useful and versatile design tool for the aerospace industry, and it is expected that its use for jet noise prediction will keep increasing.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Overview of the Use of Large-Eddy Simulations in Jet Aeroacoustics


    Contributors:

    Published in:

    AIAA Journal ; 58 , 4 ; 1620-1638


    Publication date :

    2020-01-27


    Size :

    19 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    The Use of Large Eddy Simulations in Jet Aeroacoustics

    Lyrintzis, Anastasios S. / Coderoni, Marco | AIAA | 2019


    Zonal large-eddy simulations and aeroacoustics of high-lift airfoil configurations

    Meinke, M. / König, D. / Zhang, Q. et al. | Tema Archive | 2007


    Progress Towards Multi-Block Large Eddy Simulations for Wind Turbine Aeroacoustics

    Uzun, Ali / Hussaini, Mohammed / Streett, Craig | AIAA | 2005



    3-D Large Eddy Simulation for Jet Aeroacoustics

    Uzun, Ali / Blaisdell, Gregory / Lyrintzis, Anastasios | AIAA | 2003