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http://dx.doi.org/10.7776/ASK.2014.33.6.358

Comparative Study on Viscous and Inviscid Analysis of Partial Cavitating Flow for Low Noise Propeller Design  

Kim, Ji-Hye (충남대학교 선박해양공학과)
Ahn, Byoung-Kwon (충남대학교 선박해양공학과)
Park, Cheol-Soo (한국해양과학기술원)
Kim, Gun-Do (한국해양과학기술원)
Publication Information
The Journal of the Acoustical Society of Korea / v.33, no.6, 2014 , pp. 358-365 More about this Journal
Abstract
When a ship propeller having wing type sections rotates at high speed underwater, local pressure on the blade decreases and various types of the cavitation inevitably occur where the local pressure falls below the vapor pressure. Fundamentally characteristics of the cavitation are determined by the shapes of the blade section and their operating conditions. Underwater noise radiated from a ship propeller is directly connected to the occurrence of the cavitation. In order to design low noise propeller, it is preferentially demanded to figure out key features: how the cavity is generated, developed and collapsed and how the effect of viscosity works in the process. In this study, we first perform inviscid analysis of the partial cavity generated on two dimensional hydrofoil. Secondly, viscous analysis using FLUENT with different turbulence and cavitation models are presented. Results from both approaches are also compared and estimated.
Keywords
Propeller; Cavitation; Partial cavity; Boundary element method; Turbulence model; Cavitation model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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