Hydroacoustic activity of the ship propeller operation

• Autorzy: Szantyr J.A , Koronowicz T.
• Języki publikacji: EN

Abstrakty

EN

The paper presents ship propellers as the source of a variable pressure field in water. The frequency spectrum of this field covers the entire audible range and beyond this range. This pressure field is generated by several physical mechanisms: the rotating hydrodynamic loading of the blades, the displacement effect of the rotating blades, the boundary layer effect, and, first of all, various forms of cavitation. The relative importance of these mechanisms is analysed and the methods of the theoretical prediction of the propeller generated variable pressure field are briefly presented. The results of the prediction are compared with experimental data.

Słowa kluczowe

EN

ship propellers; cavitation; hydroacoustics

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2006
• Tom: Vol. 31, No. 4
• Strony: 481--487
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Szantyr J.A

autor

Koronowicz T.

• Gdańsk University of Technology Narutowicza 11/12, 80-952 Gdańsk, Poland,

Bibliografia

• [1] CARLTON J., Marine propellers and propulsion, Butterworth.Heinemann 1994.
• [2] GLOVER E. J., SZANTYR J. A., Accumulated experience with the use of an unsteady lifting surface analysis program, Proceedings PROPCAV'95 Newcastle upon Tyne 16.18 May, pp. 253.268, 1995.
• [3] KORONOWICZ T., SZANTYR J. A., Cavitation on ship propellers as the source of hydro-acoustic emission [in Polish], Proceedings of 12-th Symposium on Hydroacoustics, Jurata 1995.
• [4] KORONOWICZ T., SZANTYR J. A., Vortex cavitation as a source of high level acoustic pressure generated by ship propellers, Acta Acustica united with Acustica, 92, 175.177 (2006).
• [5] SZANTYR J. A., A surface panel method for analysis of open and ducted propellers, Proceedings HYDRONAV'97, Szklarska Poręba 17.19 September, pp. 353.364, 1997.
• [6] SZANTYR J. A., Analytical methods for prediction of propeller cavitation and its consequences, Proceedings NCT'50, Newcastle upon Tyne, 3.5 April, pp. 37.56, 2000.