|제목(국문)||고용량 경사류용 동력계를 이용한 프로펠러 단독시험 특성의 실험적 연구|
|제목(영문)||Experimental Study of the POW Characteristics using High-capacity Inclined-shaft Dynamometer|
,한국해양과학기술원 부설 선박해양플랜트연구소
김기섭 (K. S. Kim ,한국해양과학기술원 선박해양플랜트연구소 ) ▷공저자네트워크등록하기
박영하 (Young-Ha Park ,한국해양과학기술원 부설 선박해양플랜트연구소 ) ▷공저자네트워크등록하기
In order to investigate Propeller Open Water (POW) characteristics for the high-speed propeller in Large Cavitation Tunnel (LCT), the high-capacity inclined-shaft dynamometer was designed and manufactured. Its measuring capacities of thrust and torque are ±2200N and ±120N-m, respectively. The driving motor is directly connected to the propeller shaft. Inclined angle of the propeller shaft can be adjusted up to ±10°. As the pressure inside LCT can be adjusted in the range of 0.1~3.0bar, we can carry out the POW test at high Reynolds number (above 1.0×106) without propeller cavitation and the cavitation test in uniform flow. After the new dynamometer setup in LCT, the Reynolds number variation test and propeller open-water test were conducted at the inclined angle of 0°and 6°. The present POW results of the new dynamometer are compared with those of the existing high-capacity dynamometer in LCT and of the dynamometer in the towing-tank. Through systematic model tests and comparison with their results, the performance of the new inclined-shaft dynamometer was verified. It is thought the POW test for the high-speed propeller should be better conducted at high Reynolds number.
|keyword||High-capacity inclined-shaft dynamometer(고용량 경사류용 동력계), POW(프로펠러 단독시험), Uniform flow(균일류), Reynolds number effect(레이놀즈 효과), Large Cavitation Tunnel(LCT, 대형캐비테이션터널)|