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3차원 날개의 캐비테이션 소음 계측시험

Experimental Study on the Cavitation Noise of a Hydrofoil

  • 이승재 ((주)삼성중공업 조선해양연구소) ;
  • 서종수 ((주)삼성중공업 조선해양연구소) ;
  • 한재문 ((주)삼성중공업 조선해양연구소)
  • 발행 : 2007.04.20

초록

In order to investigate the noise characteristics of the different caviation, noise measurements were carried out in a large cavitation tunnel of the Samsuug Ship Model Basin(SSMB). The noise measurements for a 3-dimensional hydrofoil were carried out at the angle of attack of $12^{\circ}$ and $16^{\circ}$ according to the decrease in cavitation number. It is exhibited that sound pressure level(SPL) increased sharply with cavitation inception. The frequency of the noise induced by sheet cavitation was higher than that of tip vortex cavitation in the phase of cavitation inception. Within the range of the high frequency, in the case of fully developed cavitation, sheet cavitation noise was significantly increased in sound pressure level compared with tip vortex cavitation noise. In this study, the noise characteristics of the different cavitation types were considered experimentally and would be utilized as a basis for the analysis of propeller cavitation noise.

키워드

참고문헌

  1. 서종수, 한재문, 이경준, 정재권, 2004, ' 추진기 캐비테이션 유기 수중 음향의 측정 및 분석,' 한국음향학회 학술발표대회, 제 23 권, 제 2(s)호, pp. 443-446
  2. 설한신, 이수갑, 표상우, 서정천, 2004,' 수중프로펠러의 소음 예측에 관한 연구 (part 2. 공동소음),' 대한조선학회 논문집, 제 41 권, 제 2 호, pp. 33-46
  3. 안종우, 강관형, 송인행, 김경열, 2000, ' 수중익의 캐비테이션 소음 계측 및 캐비티 기포 거동해석,' 대한조선학회 논문집, 제 37 권, 제 4 호, pp. 40-47
  4. Brennen, C.E., 1995, Cavitation and Bubble Dynamics, Oxford University Press, New York
  5. Donald Ross, 1976, Mechanics of Underwater Noise, Pergamon press

피인용 문헌

  1. Vortex Cavitation Inception Delay by Attaching a Twisted Thread vol.51, pp.3, 2014, https://doi.org/10.3744/SNAK.2014.51.3.259
  2. Numerical Analysis of Tip Vortex and Cavitation of Elliptic Hydrofoil with NACA 662-415 Cross Section vol.32, pp.4, 2018, https://doi.org/10.26748/KSOE.2018.6.32.4.244