In this article, noise spectrum of marine propellers is investigated in uniform flow under non-cavitating and cavitating conditions. New results are presented for this research field. Hydrodynamic performance of both non-cavitating and cavitating marine propellers is first analyzed by viscous and potential based flow solvers. In viscous solver, sheet cavitation on propeller blades is simulated with Schnerr–Sauer cavitation model based on Rayleigh Plesset equation using volume of fluid approach. Numerical hydrodynamic results based on viscous solver is compared with potential solver and then validated with experimental data of benchmark David Taylor Model Basin 4119 model propeller. Later, noise spectrum of model propellers is predicted by a hybrid method which combines Reynolds-averaged Navier Stokes and Ffowcs Williams Hawkings equations. Computed noise spectrum is compared with other numerical studies in the literature for the selected model propeller. In addition, hydrodynamic and hydroacoustic pressures are compared in near field to show reliability of numerical solution. Effects of blade number on hydrodynamic performance and noise spectrum are also investigated. Numerical results indicated that as blade number increases, propeller noise level decreases for different loading conditions due to decreased blade loading (circulation) per blade. However, propeller efficiency increases as blade number decreases.


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    Title :

    A computational investigation of noise spectrum due to cavitating and non-cavitating propellers


    Contributors:
    Sezen, Savas (author) / Bal, Sakir (author)


    Publication date :

    2020-05-01


    Size :

    14 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Radiated noise of cavitating propellers

    Noordzij, L. / Oosanen, P. van | Tema Archive | 1979



    Analysis of noise behaviour for marine propellers under cavitating and non-cavitating conditions

    Bagheri, Mohammad Reza / Seif, Mohammad Saeed / Mehdigholi, Hamid et al. | Taylor & Francis Verlag | 2017


    Hydroacoustic design aspects of cavitating propellers

    Oossanen, P.van / Stuurman, A.M. | Tema Archive | 1978


    Investigation on cavitating screw propellers operating in oblique flow

    Kozhukharov, P.G. / Sadovnikov, Y.M. / Frolov, V.A. | Tema Archive | 1983