短波增阻对船舶失速系数的影响分析  

Influence of Added Resistance in Short Waves on Coefficient fw

作　　者：陈京普[1] 邹康[1] 魏锦芳[1] 周伟新[1] 

机构地区：[1]中国船舶科学研究中心,上海200011

出　　处：《中国造船》2011年第A01期47-52,共6页Shipbuilding of China

摘　　要：船舶失速系数fw的理论预报较为复杂,仅就波浪增阻这一影响fw的重要因素,选择一条8万t级散货船开展了模型试验研究。试验结果表明,在BF6级典型海况中短波增阻占到船舶波浪增阻的50%左右,由此试验结果分析失速系数fw表明短波增阻对fw的影响可达3%。这一研究表明对于大中型船舶,短波成份是影响波浪增阻的重要因素,需要在模型试验和数值计算中重点关注。In view of the complexity of the coefficient fw for the decrease of ship speed, the model tests of 80000DWT bulk carrier were carried out for studying the influence of added resistance in short waves onfw. The computed results show that added resistance in short waves consists of more than 50% added resistance of a ship in typical irregular waves and has a great effect on the calculation offw. The furtfier result indicates that added resistance for large ships in short waves is one of most important parts for the precise predicting offw values, more research work should be carried out by model tests and numerical simulations.

关 键 词：船舶 舰船工程 EEDI 船舶失速系数fw 阻力增加 

分 类 号：U661.311[交通运输工程—船舶及航道工程]