基于叶梢小翼的泵喷推进器梢隙涡控制方法数值研究  

Numerical Investigation of Tip Leakage Vortex Control Method for Pump-Jet Propulsor Based on Tip-Winglet

作　　者：夏林生 付敏飞 张春泽[2,3] XIA Linsheng;FU Minfei;ZHANG Chunze(China Ship Development and Design Center,Wuhan 430064,China;Chongqing Southwest Water Transport Engineering Research Institute,Chongqing Jiaotong University,Chongqing 400016,China;Key Laboratory of Inland Waterway Regulation Engineering of Ministry of Communications,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]中国舰船研究设计中心,武汉430064 [2]重庆交通大学西南水运工程科学研究所,重庆400016 [3]重庆交通大学水利水运工程教育部重点实验室,重庆400074

出　　处：《船舶》2023年第6期94-101,共8页Ship & Boat

基　　金：基础产品创新科研项目(QT1451-038027)。

摘　　要：泵喷推进器转子叶片梢涡不仅会降低推进器空化性能,而且会引起较大的梢隙压力脉动和非定常激励力,从而降低推进器声学性能。因此,泵喷梢隙涡控制是提升推进器声学性能的有效途径。该文针对某前置定子泵喷推进器,提出基于叶梢翼的梢涡控制措施,并利用高精度数值仿真方法对比分析了抑制梢涡前后的泵喷推进器推进性能、流场结构、压力脉动等特性。研究结果表明:基于叶梢翼的转子梢涡控制方法可显著抑制泵喷梢涡发展和叶梢间隙压力脉动,并且对推进器的水动力性能影响较小,可为泵喷推进器声学优化提供参考。The tip-leakage vortex of the rotor blade for a pump-jet propulsor not only reduces the cavitation performance of the propulsor,but also causes significant tip leakage pressure pulsation and unsteady excitation force,thereby reducing the acoustic performance of the propulsor.Therefore,pump-jet tip-leakage vortex control is an effective way to improve the acoustic performance of the propulsor.A tip-vortex control method based on the tip-winglet has been proposed for a pump-jet propulsor with pre-swirl stators.High-precision numerical simulation method is then used to compare and analyze the propulsion performance,flow field structure and pressure pulsation of the pump-jet propulsor before and after suppressing tip vortices.The results show that the rotor tip vortex control method based on the tip-winglet can significantly suppress the development of the pumpjet tip vortices and the pressure pulsation in tip clearance,however,it has little impact on the hydrodynamic performance of the propulsor.It can provide references for the acoustic optimization of the pump-jet propulsor.

关 键 词：泵喷推进器 叶梢涡 控制方法 数值仿真 压力脉动 

分 类 号：U664.34[交通运输工程—船舶及航道工程]