五叶螺旋桨空泡演化及流场特性数值模拟研究  

Numerical Simulation of Cavitation Evolution and Flow Field Characteristics of Five-blade Propeller

作　　者：郑亚雄 张远双[1] 刘佳 朱显玲 ZHENG Yaxiong;ZHANG Yuanshuang;LIU Jia

机构地区：[1]武汉船舶职业技术学院,武汉430050 [2]武汉第二船舶设计研究所,武汉430064

出　　处：《科技创新与应用》2023年第18期37-40,共4页Technology Innovation and Application

基　　金：武汉船舶职业技术学院2023年院级科研课题(2023z18)。

摘　　要：为研究五叶螺旋桨空泡演化及流场特性,基于完整Rayleigh-Plesset空化模型,建立适用于螺旋桨非定常空化模拟的数值方法。采用多套计算网格,对DTMB4381标准五叶螺旋桨在不同进速系数下推进性能的模拟结果和试验结果进行对比,验证空化数值预报模型的准确性。结果表明:该文所建立的空泡分析模型,可以准确分析空泡发展的2个典型阶段以及临界状态,对螺旋桨空化、空泡溃灭和空泡共振等复杂现象较好地模拟,实现螺旋桨激励下空泡完整演化过程的仿真。In order to study the cavitation evolution and flow field characteristics of a five-blade propeller,a numerical method for unsteady cavitation simulation of a five-blade propeller is established based on the complete Rayleigh-Plesset cavitation model.Several sets of calculation grids are used to compare the simulation and test results of the propulsion performance of DTMB4381 standard five-blade propeller under different speed coefficients,and the accuracy of the cavitation numerical prediction model is verified.The results show that the cavitation analysis model established in this paper can accurately analyze the two typical stages and critical states of cavitation development,and simulate the complex phenomena such as propeller cavitation,cavitation collapse and cavitation resonance.The complete evolution process of cavitation excited by propeller is simulated.

关 键 词：五叶螺旋桨 完整Rayleigh-Plesset空化模型 空泡演化 空泡数 压力波动 

分 类 号：U661[交通运输工程—船舶及航道工程]