Published in: 2nd International Conference on Acoustics and Vibration
COI code: ISAV02_152
Paper Language: English
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Authors Numerical Simulation of underwater propeller non-cavitating noise by FVM methodMohammadreza Bagheri - Mechanical Engineering Department, Sharif University of Thechnology, Tehran,Iran
Mohammad said seif -
Hamid Mahdigholi -
Mohsen Rostami -
Abstract:Noise reduction and control is an important problem in the performance of underwater acoustic systems and in the habitability of the passenger ship for crew and passenger. Furthermore, soundgenerated by a propeller is critical in underwater detection and it is often related to the survivability of the vessel. This paper presents a numerical study on noises of the underwater propeller for different performance conditions. The non-cavitating and blade sheet cavitation noise generated byan underwater propeller is analyzed numerically in this study. The noise is predicted using timedomainacoustic analogy. The flow field is analyzed with finite volume method (FVM), and then the time-dependent flow field data are used as the input for Ffowcs Williams–Hawkings formulation topredict the far-field acoustics. Noise characteristics are presented according to noise sources andconditions. Through this study, the dominant noise source of the underwater propeller is analyzed. The developed flow solver is applied to the model propeller in uniform inflow. Computed results are shown to be in good agreement with other numerical results. The overall results suggest that thepresent approach is a practicable tool for predicting cavitation and non-cavitation noise of propellers in far field
Keywords:propeller noise, finite volume method(FVM), Ffowcs Williams-Hawkings, far field
COI code: ISAV02_152
how to cite to this paper:If you want to refer to this article in your research, you can easily use the following in the resources and references section:
Bagheri, Mohammadreza; Mohammad said seif; Hamid Mahdigholi & Mohsen Rostami, 2012, Numerical Simulation of underwater propeller non-cavitating noise by FVM method, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-ISAV02-ISAV02_152.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Bagheri, Mohammadreza; Mohammad said seif; Hamid Mahdigholi & Mohsen Rostami, 2012)
Second and more: (Bagheri; seif; Mahdigholi & Rostami, 2012)
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