Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Numerical Analysis of Underwater Propeller Noise(Part 2 Cavitating Noise)

수중 프로펠러의 소음 예측에 관한 연구(Part2. 공동 소음)

  • 설한신 (서울대학교 기계항공공학부) ;
  • 이수갑 (서울대학교 기계항공공학) ;
  • 표상우 (서울대학교 조선해양공학) ;
  • 서정천 (서울대학교 조선해양공학과)
  • Published : 2004.04.01
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Abstract

The cavitating noise of underwater propeller is considered numerically in this study. The main purpose of this research is to analyze these noise sources from marine propeller. The approach for investigation is a potential based panel method coupled with acoustic analogy. To predict propeller sheet cavitation noise, the blade surface cavity is considered as a single valued pulsating volume of vapor attached to the blade surface. The time dependent cavity volume data are used for noise prediction. Furthermore, we analyze hydrofoil cavitation bubble behavior and noise using Eulerian/Lagrangian approach. Through this study, we can analyze dominant noise source of marine propeller and provide a basis for proper noise control strategies.

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References

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  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