Journal of Advanced Marine Engineering and Technology
- Volume 12 Issue 1
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- Pages.53-61
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- 1988
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- 2234-7925(pISSN)
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- 2234-8352(eISSN)
A study on the characteristics of end region flow field for partially cavitating hydrofoil
익형에 발생하는 부분 캐비테이션 후연영역 유동장 특성 연구
Abstract
Most of the recent for the flow field hydrofoil in partially cavitating condition are the ones which are linearized, and the problem of cavity end region for hydrofoil is not verified. This paper deals with a study on characteristics of end region flow field for partially cavitating hydrofoil by using a characteristics of shear turbulence flow and nonlinear cavity flow theory. The results obtained as follows : 1) Shear layer thickness is decreased gradually going to the end section of hydrofoil. When attack angle is large, it is appeared largely at the region of partial cavitation after its collapsing. 2) The fluctuation velocity of a second-degree relative direction have minimum value at the front of hydrofoil or at the end of hydrofoil. The difference for the validity of attack angle is appeared largely at the surrounding of .chi.
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