추진기 캐비테이션에 의해 유기되는 변동압력의 소스 모델링및 분석

Abstract

This paper deals with a theoretical study on the source modeling and analysis of pressure fluctuation induced by a propeller. The main objective of this study is to clarify and analyze the source mechanism of the pressure fluctuation induced by a propeller cavitation. Pressure fluctuation on the rigid wall induced by a propeller is theoretically derived based on the time-domain acoustical method. The physical mechanism of pressure pulse at the blade rate frequency is analyzed using artificially generated cavitation volume variation. Finally, pressure fluctuation characteristics induced by a propeller cavitation are presented