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离心喷嘴气涡固有声学频率预测

乔兴伟 孙纪国 刘倩

乔兴伟, 孙纪国, 刘倩. 离心喷嘴气涡固有声学频率预测[J]. 航空动力学报, 2023, 38(12):2895-2904 doi: 10.13224/j.cnki.jasp.20220054
引用本文: 乔兴伟, 孙纪国, 刘倩. 离心喷嘴气涡固有声学频率预测[J]. 航空动力学报, 2023, 38(12):2895-2904 doi: 10.13224/j.cnki.jasp.20220054
QIAO Xingwei, SUN Jiguo, LIU Qian. Prediction of natural acoustic frequency of gas core in centrifugal injector[J]. Journal of Aerospace Power, 2023, 38(12):2895-2904 doi: 10.13224/j.cnki.jasp.20220054
Citation: QIAO Xingwei, SUN Jiguo, LIU Qian. Prediction of natural acoustic frequency of gas core in centrifugal injector[J]. Journal of Aerospace Power, 2023, 38(12):2895-2904 doi: 10.13224/j.cnki.jasp.20220054

离心喷嘴气涡固有声学频率预测

doi: 10.13224/j.cnki.jasp.20220054
详细信息
    作者简介:

    乔兴伟(1996-),男,硕士生,研究领域为液体火箭发动机设计

    通讯作者:

    刘倩(1987-),女,高级工程师,博士,研究领域为液体火箭发动机设计。E-mail:liuqian_mingbai@163.com

  • 中图分类号: V434.13

Prediction of natural acoustic frequency of gas core in centrifugal injector

  • 摘要:

    为得到准确的离心喷嘴气涡固有声学频率,通过renormalization group(RNG)$k{\text{-}}\varepsilon$湍流模型和volume of fluid(VOF)气液两相流模型进行数值仿真研究。仿真结果表明将离心喷嘴与喷嘴出口锥形液膜视为一个声学系统可准确预测固有声学频率,修正后离心喷嘴固有声学频率计算公式可准确计算气涡中不同气体介质的1、2阶声学频率,误差在3%以内。室压扰动频率等于离心喷嘴固有声学频率时两者发生耦合共振,气涡压力脉动振幅增加量约为室压扰动幅值的16倍,气涡声学压力脉动可能传入上游供应系统,引起喷注不稳定。

     

  • 图 1  喷嘴结构图

    Figure 1.  Schematic diagram of injector

    图 2  物理模型与监测点位置示意图

    Figure 2.  Physical model and probe position diagram

    图 3  不同密度网格压力振荡频谱图

    Figure 3.  Spectrum diagram of pressure oscillation with different density grids

    图 4  离心喷嘴充填过程氧体积分数云图

    Figure 4.  Oxygen volume fraction nephogram of centrifugal injector filling process

    图 5  液氧体积分数、温度、压力云图

    Figure 5.  Liquid oxygen volume fraction, temperature and pressure nephogram

    图 6  离心喷嘴压力振荡时间序列及幅频特性

    Figure 6.  Time series of pressure oscillation and amplitude-frequency characteristics of oscillation of centrifugal injector

    图 7  离心喷嘴工作原理示意图

    Figure 7.  Schematic diagram of working principle of open centrifugal injector

    图 8  离心喷嘴固有声学频率模态

    Figure 8.  Natural acoustic frequency mode of centrifugal injector

    图 9  液膜表面波振幅示意图

    Figure 9.  Schematic of the amplitude of the disturbance on the liquid sheet

    图 10  同轴离心喷嘴压力振荡时间序列及振荡幅频特性图

    Figure 10.  Time series of pressure oscillation and amplitude-frequency characteristics of oscillation of swirl coaxial injector

    图 11  氧体积分数和流场温度云图

    Figure 11.  Oxygen volume fraction and temperature nephogram

    图 12  不同频率反压扰动下缩进室内部压力振荡时间序列和振荡频谱图

    Figure 12.  Time series of pressure oscillation and amplitude-frequency characteristics of oscillation in different frequency disturbance of back pressures

    图 13  水体积分数和流场温度云图

    Figure 13.  Water volume fraction and temperature nephogram

    图 14  监测点1处压力振荡时间序列及振荡幅频特性图

    Figure 14.  Time series of pressure oscillation and amplitude-frequency characteristics of oscillation at probe 1

    表  1  喷嘴结构参数表

    Table  1.   Injector structure size

    参数数值
    Lc/Dc13.15
    Do/Dc1.74
    Dit/Dc0.32
    Dot/Dc0.32
    Rsw/Dc0.34
    Lh/Dc0.43
    Lr/Dc0.43
    Wa/Dc0.23
    下载: 导出CSV

    表  2  不同计算方法气涡固有声学频率结果及误差

    Table  2.   Acoustic frequency calculation and error with different methods

    方法L/mmc/(m/s)ft/Hz误差/%
    1/4波长管60965.934024.715.1
    黄玉辉等人[5]60958.293992.914.2
    王小龙等人[11]62965.933894.911.4
    方法171965.933401.22.7
    方法270965.933449.81.3
    下载: 导出CSV
  • [1] 刘娟. 旋转锥形液膜破碎过程实验与仿真研究[D]. 长沙: 国防科学技术大学, 2012.

    LIU Juan. Experimental and numerical simulation of the breakup process of swirling conical liquid sheet[D]. Changsha: National University of Defense Technology, 2012. (in Chinese)
    [2] EBERHART C J,FREDERICK R A Jr. Fluid oscillations of a swirl coaxial injector under high-frequency self-pulsation[J]. Journal of Propulsion and Power,2017,33(4): 804-814. doi: 10.2514/1.B36177
    [3] EBERHART C J,FREDERICK R A Jr. Details on the mechanism of high-frequency swirl coaxial self-pulsation[J]. Journal of Propulsion and Power,2017,33(6): 1418-1427. doi: 10.2514/1.B36216
    [4] EBERHART C J. Investigation of liquid rocket swirl coaxial injection dynamic under self-excited high frequency[D]. Huntsville, US: The University of Alabama in Huntsville, 2016.
    [5] 黄玉辉,周进,胡小平,等. 气液同轴式喷嘴自激振荡的试验现象和声学模型及对火箭发动机不稳定燃烧的影响[J]. 声学学报,1998,23(5): 459-465.

    HUANG Yuhui,ZHOU Jin,HU Xiaoping,et al. Experiment and acoustic model for the self-oscillation of coaxial swirl injector and its influence to combustion of liquid rocket engine[J]. Acta Acustica,1998,23(5): 459-465. (in Chinese)
    [6] 周进,胡小平,黄玉辉,等. 液体火箭发动机气液同轴式喷嘴声学特性的实验研究[J]. 推进技术,1996,17(4): 37-41.

    ZHOU Jin,HU Xiaoping,HUANG Yuhui,et al. An experimental study on acoustic characteristics of gas-liquid coaxial injector of liquid rocket engine[J]. Journal of Propulsion Technology,1996,17(4): 37-41. (in Chinese)
    [7] 李龙飞,陈建华,周立新,等. 补燃循环火箭发动机气液同轴式喷嘴声学特性研究[J]. 火箭推进,2004,30(6): 5-10.

    LI Longfei,CHEN Jianhua,ZHOU Lixin,et al. Investigation on acoustic characteristics of gas-liquid coaxial injector of staged combustion rocket engine[J]. Journal of Rocket Propulsion,2004,30(6): 5-10. (in Chinese)
    [8] 李龙飞,陈建华,张蒙正,等. 液氧煤油气液同轴直流离心式喷嘴的声学模拟实验研究[J]. 火箭推进,2006,32(2): 1-5. doi: 10.3969/j.issn.1672-9374.2006.02.001

    LI Longfei,CHEN Jianhua,ZHANG Mengzheng,et al. Acoustic modeling experimental investigation of the LOx/kerosene gas-liquid coaxial orifice-swirl injector[J]. Journal of Rocket Propulsion,2006,32(2): 1-5. (in Chinese) doi: 10.3969/j.issn.1672-9374.2006.02.001
    [9] 杨立军,葛明和,张向阳. 液体离心喷嘴喷雾场动态特性的初步研究[J]. 航空动力学报,2005,20(6): 1083-1087.

    YANG Lijun,GE Minghe,ZHANG Xiangyang. Preliminary investigation on dynamic characteristics of swirl injector[J]. Journal of Aerospace Power,2005,20(6): 1083-1087. (in Chinese)
    [10] 富庆飞,杨立军,屈元元,等. 气液同轴喷嘴缩进室动态特性均相流模型[J]. 航空动力学报,2010,25(8): 1918-1922.

    FU Qingfei,YANG Lijun,QU Yuanyuan,et al. Investigation on dynamic characteristic of recessed region of a gas-liquid coaxial injector with homogeneous flow model[J]. Journal of Aerospace Power,2010,25(8): 1918-1922. (in Chinese)
    [11] 王小龙,陆静,王亚运,等. 1/4波长管参数对发动机进气噪声的影响研究[J]. 汽车实用技术,2014(9): 49-51.

    WANG Xiaolong,LU Jing,WANG Yayun,et al. Effect of parameters of 1/4 wave length tube on engine intake noise[J]. Automobile Technology,2014(9): 49-51. (in Chinese)
    [12] BAI Xiao,LI Qinglian,CHENG Peng,et al. Investigation of self-pulsation characteristics for a liquid-centered swirl coaxial injector with recess[J]. Acta Astronautica,2018,151: 511-521. doi: 10.1016/j.actaastro.2018.07.002
    [13] ZONG Nan,YANG V. Cryogenic fluid dynamics of pressure swirl injectors at supercritical conditions[J]. Physics of Fluids,2008,20(5): 19-29.
    [14] 何琳, 朱海潮, 邱小军, 等. 声学理论与工程应用[M]. 北京: 科学出版社, 2006.
    [15] 富庆飞,杨立军,屈元元,等. 敞口型液体离心喷嘴动态特性数值模拟[J]. 航空动力学报,2010,25(9): 2132-2138.

    FU Qingfei,YANG Lijun,QU Yuanyuan,et al. Numerical simulation of dynamic characteristics of an open-end swirl injector[J]. Journal of Aerospace Power,2010,25(9): 2132-2138. (in Chinese)
    [16] 杨立军,富庆飞. 喷嘴对供应系统到燃烧室压力振荡传递幅频特性的影响[J]. 航空动力学报,2008,23(2): 305-310.

    YANG Lijun,FU Qingfei. Effect of injector on pressure oscillation amplitude-frequency characteristics from pipeline to combustion chamber[J]. Journal of Aerospace Power,2008,23(2): 305-310. (in Chinese)
    [17] 杨立军,张向阳,葛明和. 敞口型离心喷嘴动力学特性理论分析[J]. 推进技术,2006,27(6): 497-500, 549. doi: 10.3321/j.issn:1001-4055.2006.06.005

    YANG Lijun,ZHANG Xiangyang,GE Minghe. Theoretical analysis of dynamics of open swirl injector[J]. Journal of Propulsion Technology,2006,27(6): 497-500, 549. (in Chinese) doi: 10.3321/j.issn:1001-4055.2006.06.005
    [18] INAMURA T,TAMURA H,SAKAMOTO H. Characteristics of liquid film and spray injected from swirl coaxial injector[J]. Journal of Propulsion and Power,2003,19(4): 632-639. doi: 10.2514/2.6151
    [19] FU Qingfei,YANG Lijun,QU Yuanyuan. Measurement of annular liquid film thickness in an open-end swirl injector[J]. Aerospace Science and Technology,2011,15(2): 117-124. doi: 10.1016/j.ast.2010.06.006
    [20] 陈晨. 敞口式离心喷嘴喷雾特性及应用研究[D]. 成都: 西南交通大学, 2017.

    CHEN Chen. The spray characteristics and engineering application of an open-end swirl injector[D]. Chengdu: Southwest Jiaotong University, 2017. (in Chinese)
    [21] FU Qingfei,YANG Lijun,QU Yuanyuan,et al. Linear stability analysis of a conical liquid sheet[J]. Journal of Propulsion and Power,2010,26(5): 955-968. doi: 10.2514/1.48346
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出版历程
  • 收稿日期:  2022-02-07
  • 网络出版日期:  2023-08-28

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