8800TEU급 컨테이너선 프로펠러 추진효율 및 캐비테이션 성능향상 연구

Abstract

In order to investigate propulsion efficiency and cavitation characteristics for expanded area ratio variation of the 8800TEU class container propeller, a series of performance tests were conducted at Large Cavitation Tunnel(LCT) and Towing Tank(TT) in KRISO. The cavitation test of the existing propellers, which had ever been tested in Midium Cavitation Tunnel, was conducted using FRP model ship in LCT. On the basis of LCT test results, it was required the development of design propeller with better propulsion efficiency and cavitation performance. Two propellers(KP1171 & KP1172) were designed on the basis of KP1029 propeller with good efficiency and low expanded area ratio (AE/AO). Both of the new design propellers showed higher efficiency than KP1029 and reasonable cavitation performance. In the future, they will be applied as the standard propeller for the propeller design of the large container ship . Through the performance test and prediction results for the new design propellers, it is thought that high-load propeller with better propulsion efficiency and cavitation performance will be developed constantly.