基于高压气体驱动的爆炸波模拟激波管冲击波衰减历程控制方法

程帅 童念雪 刘文祥 殷文骏 李秦超 张德志

程帅, 童念雪, 刘文祥, 殷文骏, 李秦超, 张德志. 基于高压气体驱动的爆炸波模拟激波管冲击波衰减历程控制方法[J]. 爆炸与冲击, 2024, 44(5): 052201. doi: 10.11883/bzycj-2023-0094
引用本文: 程帅, 童念雪, 刘文祥, 殷文骏, 李秦超, 张德志. 基于高压气体驱动的爆炸波模拟激波管冲击波衰减历程控制方法[J]. 爆炸与冲击, 2024, 44(5): 052201. doi: 10.11883/bzycj-2023-0094
CHENG Shuai, TONG Nianxue, LIU Wenxiang, YIN Wenjun, LI Qinchao, ZHANG Dezhi. A control method for attenuation history of shock wave generated by blast simulation shock tube based on high pressure gas driving technic[J]. Explosion And Shock Waves, 2024, 44(5): 052201. doi: 10.11883/bzycj-2023-0094
Citation: CHENG Shuai, TONG Nianxue, LIU Wenxiang, YIN Wenjun, LI Qinchao, ZHANG Dezhi. A control method for attenuation history of shock wave generated by blast simulation shock tube based on high pressure gas driving technic[J]. Explosion And Shock Waves, 2024, 44(5): 052201. doi: 10.11883/bzycj-2023-0094

基于高压气体驱动的爆炸波模拟激波管冲击波衰减历程控制方法

doi: 10.11883/bzycj-2023-0094
详细信息
    作者简介:

    程 帅(1988- ),男,硕士,副研究员,chengshuai@nint.ac.cn

    通讯作者:

    张德志(1973- ),男,博士,研究员,zhangdezhi@nint.ac.cn

  • 中图分类号: O383.3

A control method for attenuation history of shock wave generated by blast simulation shock tube based on high pressure gas driving technic

  • 摘要: 基于高压气体驱动的爆炸波模拟激波管,一般采用驱动段、喉部、膨胀段的结构形式,可产生特征与爆炸波接近的模拟冲击波,是实验室中开展长正压作用时间爆炸毁伤效应研究的理想平台。通过调整激波管的变截面结构和驱动段形状,实现冲击波超压衰减历程的控制,是此类爆炸波模拟激波管设计面临的核心问题之一。基于实验室现有的爆炸波模拟激波管结构,建立了激波管内一维流动数值计算模型;参考统计学理论,提出了基于决定系数的激波管模拟冲击波与标准爆炸波相似度评价方法;进而以变截面激波管的流动特性为基础,研究了驱动段形状对冲击波衰减历程的影响机理。研究结果表明:采用距离喉部越远、截面直径越小的驱动段形状,以决定系数为量化标准、优化驱动段形状,控制稀疏波、压缩波在激波管内的运动过程,可以获得接近于爆炸波指数衰减特征的模拟冲击波。
  • 图  1  爆炸波模拟激波管结构

    Figure  1.  Structure of blast wave simulation tube

    图  2  驱动段等截面激波管的流动特性

    Figure  2.  Flow characteristics in blast tube with uniform driving section

    图  3  驱动段等截面激波管的冲击波历程

    Figure  3.  History of shock wave in blast tube with uniform driving section

    图  4  变截面驱动段对冲击波衰减影响

    Figure  4.  Influence of variable cross-section driving segment on shock wave attenuation

    图  5  驱动段形状收缩结构直径对冲击衰减历程的影响

    Figure  5.  Influence of contraction structure diameter of the driving tube on the attenuation of the impact

    图  6  驱动段形状收缩结构位置对冲击衰减历程的影响

    Figure  6.  Influence of contraction structure location of the driving tube on the attenuation of the impact

    图  7  冲击波衰减历程控制计算模型

    Figure  7.  Computational model of blast wave attenuation process control

    图  8  冲击波衰减历程控制结果

    Figure  8.  Result on the attenuation process control of blast wave

    表  1  计算模型参数

    Table  1.   Parameters of calculation model

    ModelL/mmL1/mmL2/mmD1/mmD2/mmG1/mmG2/mmG3/mm
    Ref1000501008001750
    1100040045045501008001750
    2100040045040501008001750
    3100055030040501008001750
    4100025060040501008001750
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-03-14
  • 修回日期:  2023-11-24
  • 网络出版日期:  2024-03-11
  • 刊出日期:  2024-05-08

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