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

The Society of Naval Architects of Korea (대한조선학회)
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Pressure Fluctuation Induced by Propeller Sheet Cavitation with Consideration of the Near Field Effect

근접장 효과를 고려한 추진기 얇은 층 캐비테이션에 의해 유기되는 변동압력에 관한 연구

  • Seol, Han-Shin (Maritime and Ocean Engineering Research Institute(MOERI)/KORDI) ;
  • Moon, Il-Sung (Maritime and Ocean Engineering Research Institute(MOERI)/KORDI)
  • 설한신 (한국해양연구원 해양시스템안전연구소) ;
  • 문일성 (한국해양연구원 해양시스템안전연구소)
  • Published : 2009.04.20
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Abstract

A theoretical study on the pressure fluctuation induced by a propeller was carried out in this study. The main objective of this study is to analyze the source mechanism of the pressure fluctuation induced by propeller sheet cavitation. To analyze the pressure fluctuation induced by propeller sheet cavitation, modern acoustic theory was applied. Governing equation of pressure fluctuation induced by sheet cavitation was derived using Ffowcs Williams proposed time domain acoustic approaches. Several factors affecting pressure fluctuation were analyzed based on the derived governing equation. Pressure fluctuation result was represented by combined results of the far field term and near field term. Finally, the physical mechanism of pressure fluctuation at the blade rate frequency was analyzed using numerically generated cavitation volume variation.

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References

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Cited by

  1. Development of a time domain prediction method for hull pressure fluctuation induced by marine propeller sheet cavitation with consideration of scattering effects vol.17, pp.3, 2012, https://doi.org/10.1007/s00773-012-0173-2