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국내 최대 기계·건설 공학연구정보
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  • ProX 300  메탈3D 프린터
  • 국내학술대회

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    국내학술대회 제목 게시판 내용
    제목(국문) 회전하는 선박 프로펠러 전방 유입류에 대한 PIV 속도장 해석
    제목(영문) PIV Velocity Field Analysis of Inflow ahead of a Rotating Marine Propeller
    저자 백부근 (B. G. Paik ,포항공과대학교 기계공학과 ) ▷공저자네트워크등록하기
    이상준 (S. J. Lee ,포항공과대학교 기계공학과 ) ▷공저자네트워크등록하기
    초록 Flow characteristics of the inflow ahead of a rotating propeller attached to a container ship model were investigated using a two-frame PIV (Particle Image Velocimetry) technique. Ensemble-averaged mean velocity fields were measured at four different blade phases. The mean velocity fields show the acceleration of inflow due to the rotating propeller and the velocity deficit in the near-wake region. The axial velocity distribution of inflow in the upper half region of propeller is quite different from that in the lower half due to the thick hull boundary layer. The propeller inflow also shows asymmetric axial velocity distribution in the port and starboard side. As the inflow moves toward the propeller. the effect of phase angie variation of propeller blade on the inflow becomes dominant. On the upper region above the propeller axis the inflow has very low axial velocity and large turbulent kinetic energy, compared with the lower region The boundary layer developed along the bottom surface of stern hull forms a strong shear layer affecting vortex structure of the propeller near-wake
    keyword 입자영상속도계;전속도;유효반류;위상평균;날개끝 보오텍스;PIV;Total flow velocity;Effective wake;Phase averaging;Tip vortex
    저널명 대한조선학회 춘계학술대회 ▷관련저널보기
    VOL 4
    PAGE 285-292
    발표년도 2004
    국문File 국문다운로드
    영문File
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