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http://dx.doi.org/10.3744/SNAK.2011.48.1.1

An Experimental Study on Noise Characteristics of Propeller Cavitation Inception  

Lee, Phil-Ho (Agency for Defense Development)
Ahn, Byoung-Kwon (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
Lee, Chang-Sup (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
Lee, Jung-Hoon (Samsung Heavy Industry Co. Ltd., Marine Research Institute)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.1, 2011 , pp. 1-7 More about this Journal
Abstract
Cavitation is the formation of vapour bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapor pressure. Various types of cavitations are generated on the propeller blades. As cavity bubbles passing the blade are forced to oscillate in size or shape and come to collapse, they cause very strong local acoustic waves in the fluid and radiate noise. Comparing the Sound Pressure Level(SPL) before and after cavitation, SPL increases 2dB per 1 knot increase in ship speed above the cavitation inception speed(CIS). Consequently, the CIS is an important criteria to design silent propellers. In this work, experimental measurements of radiated noise according to various types of cavitations from the model propeller are carried out in a large cavitation tunnel and their acoustical characteristics are extensively investigated.
Keywords
Marine propeller; Cavitation; Sound pressure level(SPL); Cavitation Inception Speed(CIS);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 Ahn, B.K. Lee, J.H. Choi, J.S. & Lee, C.S., 2008. Noise Source Identification Technology using TDOA and Beamforming Methods. Proceeding of the SNAK Conference, May 29-30, 2008, pp.1704-1713.
2 Ahn, J.W. Park, Y.H. Kim, K.S. & Lee, J.T., 2002. The Flow Noise Characteristics on Hydrophone Installation Method in the Cavitation Tunnel. Journal of the Society of Naval Architects of Korea, 39(1), pp.1-7.   과학기술학회마을   DOI   ScienceOn
3 Ahn, J.W. Park, Y.H. Moon, I.S. ＆ Kim, K.S., 2001. Cavitation and Noise Characteristics of High-Speed Propellers with Geometric Variations. Journal of the Society of Naval Architects of Korea, 38(3), pp.23-30.   과학기술학회마을
4 Blake, W.K., 1986. Mechanics of Flow-Induced Sound and Vibration. Academic Press, INC.
5 Kummert, A., 1993. Fuzzy Technology Implemented in Sonar Systems. IEEE Journal of Oceanic Engineering, 18(4), pp.483-490.   DOI   ScienceOn
6 Lee, S.J. Shu, J.S. & Han, J.M., 2007. Experimental Study on the Cavitation Noise of a Hydrofoil. Journal of the Society of Naval Architects of Korea, 44(2), pp.111-118.   과학기술학회마을   DOI   ScienceOn
7 Lee, C.S. et al., 2008. Ship Propulsion and Propeller Design. Munundang.
8 Song, I.H., Ahn, J.W., Kim, K.S. & Moon, I.S., 2000. Characteristics of Cavitation Noise on High-Speed Propellers. Journal of the Society of Naval Architects of Korea, 37(2), pp.22-29.   과학기술학회마을