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水下垂直运动航行体的尾喷流特性实验

张春 许统华 刘新辉 王宝寿

张春, 许统华, 刘新辉, 等. 水下垂直运动航行体的尾喷流特性实验[J]. 航空动力学报, 2024, 39(10):20220824 doi: 10.13224/j.cnki.jasp.20220824
引用本文: 张春, 许统华, 刘新辉, 等. 水下垂直运动航行体的尾喷流特性实验[J]. 航空动力学报, 2024, 39(10):20220824 doi: 10.13224/j.cnki.jasp.20220824
ZHANG Chun, XU Tonghua, LIU Xinhui, et al. Experiment on the tail supersonic jets characteristics of an underwater vertically moving vehicle[J]. Journal of Aerospace Power, 2024, 39(10):20220824 doi: 10.13224/j.cnki.jasp.20220824
Citation: ZHANG Chun, XU Tonghua, LIU Xinhui, et al. Experiment on the tail supersonic jets characteristics of an underwater vertically moving vehicle[J]. Journal of Aerospace Power, 2024, 39(10):20220824 doi: 10.13224/j.cnki.jasp.20220824

水下垂直运动航行体的尾喷流特性实验

doi: 10.13224/j.cnki.jasp.20220824
详细信息
    作者简介:

    张春(1988-),男,高级工程师,博士,主要从事水下发射技术方面的研究。E-mail:zh_ch_@live.cn

  • 中图分类号: V475.1;TJ762.4;O358;O359

Experiment on the tail supersonic jets characteristics of an underwater vertically moving vehicle

  • 摘要:

    针对水下航行体尾部绕流与超声速气体射流相互作用的流动问题,开展了水下垂直运动航行体的尾喷流特性实验,通过高速摄像系统记录空泡形态演变过程,并采用动态测力系统测量空泡流发展过程中航行体底部压力的脉动特征。结果表明:静水环境中超声速气体射流形成的空泡主体形态逐渐演变为类椭球状气囊,局部发生Rayleigh-Taylor失稳后出现鼓包现象,射流贯穿距离随喷管扩张比的增加而减少;剪切绕流中通气启动阶段可能形成不对称空泡壁面,绕流与射流相互作用进而导致空泡发生摆动,稳定工作阶段空泡摆动现象逐渐消失;射流对喷管近场不断产生扰动,航行体底部压力相继呈现瞬态冲击压力峰值、初期宽幅脉动、工作阶段高频脉动、出水后停止脉动的特征;航行体高速运动形成的剪切绕流可以抑制尾喷流高频振荡,200~1200 Hz频带段内的压力振荡信号显著减少。

     

  • 图 1  实验系统示意图

    Figure 1.  Schematic of the experimental setup

    图 2  实验模型结构示意图

    Figure 2.  Schematic of the experimental model

    图 3  典型工况下驻室压力的变化曲线

    Figure 3.  Pressure curves of the stationary chamber

    图 4  静水环境中通气启动阶段的空泡形态演化过程

    Figure 4.  Evolution of cavity during the start-up stage of ventilation in still water

    图 5  静水环境中通气启动阶段的空泡轮廓曲线

    Figure 5.  Profiles of cavity during the start-up stage of ventilation in still water

    图 6  不同扩张比喷管的射流贯穿距离变化曲线

    Figure 6.  Curves of jet penetration distance of nozzles with different expansion ratios

    图 7  Vd=4 m/s工况下通气启动阶段的空泡形态演化过程

    Figure 7.  Evolution of cavity during the start-up stage of ventilation at Vd=4 m/s

    图 8  通气启动阶段的空泡摆动过程

    Figure 8.  Cavity oscillation during the start-up stage of ventilation

    图 9  通气工作阶段的空泡形态演化过程

    Figure 9.  Evolution of cavity during working stage of ventilation

    图 10  水下航行体的尾部流场结构示意图

    Figure 10.  Flow structure pattern of the tail of underwater vehicles

    图 11  静水环境中通气过程航行体底部压力变化曲线

    Figure 11.  Curves of pressure at vehicle bottom during ventilation in still water

    图 12  不同运动工况下的航行体底部压力变化曲线

    Figure 12.  Curves of pressure at vehicle bottom under different velocities

    图 13  航行体底部压力脉动强度随垂直运动速度的变化曲线

    Figure 13.  Curves of pressure pulsation intensity at vehicle bottom with vertical velocity

    图 14  航行体底部压力脉动的幅值谱图

    Figure 14.  Amplitude spectrum of pressure pulsation at vehicle bottom

    表  1  喷管出口流动参数理论计算结果

    Table  1.   Theoretical results of flow parameters at nozzle outlet

    ξe $ Ma $ $ p/{p_{\text{0}}} $ $ T/{T_{\text{0}}} $ $ \rho /{\rho _{\text{0}}} $
    1.5 1.854 0.1602 0.5926 0.2703
    4 2.940 0.0298 0.3664 0.0813
    12 4.127 0.0056 0.2269 0.0245
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-11-03
  • 网络出版日期:  2023-12-26

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