超大型矿砂船螺旋桨空泡剥蚀研究  

Cavitation erosion on the propeller blades for a very large ore carrier

作　　者：左成魁 黄红波[2,3] 韩用波 顾湘男[2,3] 马艳 曾志波[2,3] ZUO Cheng-kui;HUANG Hong-bo;HAN Yong-bo;GU Xiang-nan;MA Yan;ZENG Zhi-bo(COSCO Shipping Heavy industry(Yangzhou)Co.,Ltd.,Yangzhou 225200,China;National Key Laboratory on Ship Vibration&Noise,China Ship Scientific Research Center,Wuxi 214082,China;Taihu Laboratory of Deepsea Technological Science,Wuxi 214082,China)

机构地区：[1]扬州中远海运重工有限公司,江苏扬州225200 [2]中国船舶科学研究中心船舶振动噪声重点实验室,江苏无锡214082 [3]深海技术科学太湖实验室,江苏无锡214082

出　　处：《船舶力学》2023年第11期1608-1619,共12页Journal of Ship Mechanics

基　　金：国家自然科学基金集成项目(91952301);水动力学预研基金项目(50907010101)。

摘　　要：为解决某超大型矿砂船螺旋桨梢部随边剥蚀问题,在中国船舶科学研究中心大型循环水槽中开展了全附体船舶带螺旋桨模型的空泡与脉动压力特性研究,确认了实船螺旋桨空泡剥蚀产生的原因,并基于产生剥蚀空泡的动态特征,设计了三种不同解决方案,期望改善矿砂船螺旋桨空泡运动行为,降低空泡剥蚀风险。试验结果表明:对原螺旋桨压力面导边0.6R~1.0R削边处理,可增加空泡体积与稳定性,明显改善原螺旋桨叶梢空泡动态行为,降低剥蚀风险;新设计的Eppler剖面螺旋桨,可产生无害的空泡形态,避免了空泡剥蚀的产生。In order to solve cavitation erosion of a VLOC’s propeller,cavitation observation and pressure fluctuation measurement of a full appendaged ship model were carried out in the large cavitation channel of China Ship Scientific Research Center.The cavitation test results revealed and confirmed the reason of cavi-tation erosion at the trailing edge around the blade tips of the original propeller.Based on the dynamic charac-teristics of cavitation on the original propeller,three methods were proposed to improve cavitation behavior to avoid erosion risk,the results of the following cavitation test indicated that the cutting leading edge on the original propeller blades at pressure side can improve the cavitation stability and that the risk of erosion is ob-viously reduced.Additionally,a new designed propeller with Eppler blade sections has quite stable cavitation behavior with harmless cavitation pattern,which avoids the risk of cavitation erosion.

关 键 词：空泡剥蚀 空泡动态行为 船舶螺旋桨 

分 类 号：U661.313[交通运输工程—船舶及航道工程]