PIV 를 이용한 선박 프로펠러 후류의 속도장 계측
PIV Velocity Field Measurements of Flow around a Ship with Rotating Propeller
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조회
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다운로드
4
인용
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참고문헌
키워드
초록
Abstract
Velocity field behind a container ship model with a rotating propeller has been investigated using PIV (particle image velocimetry) system. Four hundred instantaneous velocity fields were measured at 4 different blade phases and ensemble-averaged to investigate the spatial evolution of vortical structure of near wake within one propeller diameter downstream. The phase-averaged mean velocity fields show the potential wake and the viscous wake formed due to the boundary layers developed on the blade surfaces. The interaction between bilge vortex developed along the hull surface and the tangential velocity component of incoming flow causes to have asymmetric flow structure in the transverse plane.