基于空泡数值模拟的船尾流激振动治理研究  

Reduction of Flow-induced Vibration of Ship Stern Based on Cavitation Numerical Simulation

作　　者：黄树权[1,2] 夏灏超 韩用波 黄国富[1,2] HUANG Shuquan;XIA Haochao;HAN Yongbo;HUANG Guofu(Shanghai Branch of China Ship Scientific Research Center,Shanghai 200011,China;CSIC Shanghai Marine Energy Saving Technology Development Co.,Ltd.,Shanghai 200011,China)

机构地区：[1]中国船舶科学研究中心上海分部,上海200011 [2]中船重工(上海)节能技术发展有限公司,上海200011

出　　处：《中国造船》2020年第3期68-74,共7页Shipbuilding of China

摘　　要：应用CFD数值模拟技术对螺旋桨空泡及其脉动压力进行评估,为螺旋桨、船尾线型及附体的优化设计提供依据。针对一艘双桨船振动过高的问题,提出轴支架和螺旋桨优化设计的方案。经评估,优化后螺旋桨空泡性能得到显著改善,诱导的船尾脉动压力从10 kPa以上降低至3 kPa左右,船尾振动得到大幅降低,并得到了实船振动测试结果的验证。Numerical simulation by CFD is used to evaluate and analyze propeller’s cavitation and related pressure pulsation for a double-dyed ship with severe stern vibration.Based on the analysis,optimization design of the propeller and shaft bracket is presented,which will reduce the pulsating pressure at the stern from more than 10 kPa to about 3 kPa.And results of vibration test in full scale show that the vibration of the ship has been improved significantly.

关 键 词：螺旋桨 轴支架 整流 空泡 CFD 振动 

分 类 号：U661.3[交通运输工程—船舶及航道工程]