Abstract
AbstractThe performance of the waterjet system of 180 ton class fishing guard ship has been experimentally studied. A waterjet propulsion system has many advantages in comparison with a conventional screw propeller especially for high speed c raft because of its good cavitation performance. Recently waterjet system has been appli ed to fishing boats and fishing guard ship because of avoiding a net problem although their speeds are not so high. This paper describes experimental procedure and analysis method of resistance and self-propulsion tests with a 1/14.46-scale model. Experimental results were analyzed according to ITTC 96 standard method. The full-scale effective power and delivered power of the ship were also analyzed and the full-scale speed predict ed from the model test results shows a good agreement with the full-scale result from the sea trial tests. ※Keywords: Waterjet propulsion system(물분사 추진 장치), Resistance and Self-propulsion test(저항 및 자항시험), ITTC96 momentum method(ITTC96 모멘텀 방법)
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