This paper presents the high-fidelity numerical simulation and analysis of ducted/un-ducted propeller aerodynamics and acoustics. High-fidelity CFD simulations at several operating conditions were performed using the in-house HMB3 solver and were validated against experiments and lower-order methods. Superior performance of the ducted propeller at lower advance ratios or in hover conditions was verified. Near-field acoustics was then extracted directly from the CFD simulations. Far-field acoustics was also calculated based on the FW-H equations taking the CFD results as inputs. The noise reduction, directivity changes, and fly-by signals are quantitatively presented and analysed.


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    Titel :

    High-Fidelity Numerical Analysis of Ducted Propeller Aerodynamics and Acoustics


    Weitere Titelangaben:

    Computational Methods


    Beteiligte:
    Knoerzer, Dietrich (Herausgeber:in) / Periaux, Jacques (Herausgeber:in) / Tuovinen, Tero (Herausgeber:in) / Zhang, Tao (Autor:in) / Barakos, George N. (Autor:in)


    Erscheinungsdatum :

    2022-12-13


    Format / Umfang :

    15 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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