船舶 ›› 2023, Vol. 34 ›› Issue (06): 94-101.DOI: 10.19423/j.cnki.31-1561/u.2023.06.094

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基于叶梢小翼的泵喷推进器梢隙涡控制方法数值研究

夏林生1, 付敏飞1, 张春泽2,3,*   

  1. 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
  • 收稿日期:2023-10-22 修回日期:2023-11-09 出版日期:2023-12-25 发布日期:2023-12-28
  • 通讯作者: 张春泽(1987-),男,博士,副教授。研究方向:计算流体力学。
  • 作者简介:夏林生(1988-),男,博士,高级工程师。研究方向:舰船总体设计。付敏飞 (1983-),男,硕士,高级工程师。研究方向:舰船总体设计。
  • 基金资助:
    基础产品创新科研项目(QT1451-038027)

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

XIA Linsheng1, FU Minfei1, ZHANG Chunze2,3,*   

  1. 1. China Ship Development and Design Center, Wuhan 430064, China;
    2. Chongqing Southwest Water Transport Engineering Research Institute, Chongqing Jiaotong University, Chongqing 400016, China;
    3. Key Laboratory of Inland Waterway Regulation Engineering of Ministry of Communications, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2023-10-22 Revised:2023-11-09 Online:2023-12-25 Published:2023-12-28

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。

关键词: 泵喷推进器, 叶梢涡, 控制方法, 数值仿真, 压力脉动

Abstract: 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 pump-jet 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.

Key words: pump-jet propulsor, tip vortex, control method, numerical simulation, pressure pulsation

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