Browse > Article

A Numerical Study on the Source Mechanism of the Pressure Fluctuation Induced by Propeller Cavitation  

Seol, Han-Shin (Maritime and Ocean Engineering Research Institute, KORDI)
Moon, Il-Sung (Maritime and Ocean Engineering Research Institute, KORDI)
Publication Information
Journal of Ship and Ocean Technology / v.12, no.2, 2008 , pp. 32-40 More about this Journal
Abstract
This paper deals with the pressure fluctuation induced by propeller cavitation. The main objective of this study is to analyze the source mechanism of the pressure fluctuation induced by propeller cavitation. To analyze the source mechanism of the pressure fluctuation, modem acoustic theory is applied. The governing equation of the pressure fluctuation induced by propeller is derived using Ffowcs Williams-Hawkings proposed time domain acoustic method. The physical mechanism of pressure fluctuation at the blade rate frequency is analyzed using numerically generated cavitation volume variation. Finally the characteristics of the pressure fluctuation induced by a propeller are presented.
Keywords
pressure fluctuation; cavitation; propeller; source mechanism; acoustic method;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Bark, G. 1988. On the Mechanism of Propeller Cavitation Noise. Ph. D Thesis, Chalmers University of Technology
2 The Specialist Committee on Cavitation Induced Pressures. 2002. 23rd International Towing Tank Conference, 417-458
3 Kinns, R. and C. D. Bloor. 2003. Hull Vibration excitation due to monopole and dipole propeller sources. Journal of Sound and Vibration, 27, 951-980
4 Kim, M.-C., K.-S. Kim and I.-H. Song. 1996. A Study of a Correlation between Experiments and Calculations of Pressure Fluctuation on Hull Surface. Transactions of the Society of Naval Architectures of Korea, 33, 1, 19-26
5 Lee, C.-S., J.-T. Lee, J.-C. Suh and Y.-G. Kim. 1992. An Analysis of Excitation Forces on the Ship Hull Induced by the Propeller. Transactions of the Society of Naval Architectures of Korea, 29, 1, 81-92