某伴流补偿导管对螺旋桨空泡及r空泡剥蚀性能影响研究

摘要

文章介绍了中国船舶科学研究中心大型循环水槽中开展的某散货船有、无伴流补偿导管下螺旋桨空泡、空泡剥蚀性能对比试验研究,并深入分析某伴流补偿导管对空泡形态、空泡剥蚀性能影响及导管设计过程中需注意的问题.试验结果表明:前置伴流补偿导管会增加螺旋桨表面空泡面积及空泡诱导的船体脉动压力一阶叶频分量,且不合适的伴流补偿导管安装方式会增加桨叶空泡剥蚀风险.%This paper describes the model test of cavitation observation and cavitation erosion measurement with and without wake equalizing duct in China Ship Scientific Research Center (CSSRC), meanwhile, the differences of propeller cavitation and cavitation erosion performance and some attentions are mentioned. The experiment results indicate that the area of sheet cavitaion and the maximum 1st harmonic pressure fluctuation values increase obviously with wake equalizing duct, what's more, improper wake equalizing duct will have some hint of blade cavitation erosion.