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爆炸波高精度数值计算程序开发及应用

徐维铮 吴卫国

徐维铮, 吴卫国. 爆炸波高精度数值计算程序开发及应用[J]. 中国舰船研究, 2017, 12(3): 64-74. doi: 10.3969/j.issn.1673-3185.2017.03.010
引用本文: 徐维铮, 吴卫国. 爆炸波高精度数值计算程序开发及应用[J]. 中国舰船研究, 2017, 12(3): 64-74. doi: 10.3969/j.issn.1673-3185.2017.03.010
Weizheng XU, Weiguo WU. Development of in-house high-resolution hydrocode for assessment of blast waves and its application[J]. Chinese Journal of Ship Research, 2017, 12(3): 64-74. doi: 10.3969/j.issn.1673-3185.2017.03.010
Citation: Weizheng XU, Weiguo WU. Development of in-house high-resolution hydrocode for assessment of blast waves and its application[J]. Chinese Journal of Ship Research, 2017, 12(3): 64-74. doi: 10.3969/j.issn.1673-3185.2017.03.010

爆炸波高精度数值计算程序开发及应用

doi: 10.3969/j.issn.1673-3185.2017.03.010
基金项目: 

国家部委基金资助项目;国家自然科学基金资助项目 51409202

详细信息
    作者简介:

    徐维铮, 男, 1991年生, 博士生。研究方向:爆炸波高精度数值计算方法及三维程序开发。E-mail:xuweizheng@whut.edu.cn

    通信作者:

    吴卫国(通信作者), 男, 1960年生, 教授, 博士生导师。研究方向:结构动力学。E-mail:mailjt@163.com

  • 中图分类号: U661.4

Development of in-house high-resolution hydrocode for assessment of blast waves and its application

  • 摘要:   目的  当爆炸发生在约束空间内部,由于壁面的约束限制,爆炸冲击波的传播和演化特性将更加复杂,其对结构、内部设施及人员的损伤也更加严重。为了研究约束空间内部的爆炸特性,  方法  基于FORTRAN平台,采用三阶WENO有限差分格式,自主开发约束空间内部爆炸波高精度三维数值计算程序。利用Sod激波管、双爆轰波碰撞、空中爆炸等经典算例,验证所开发程序的可靠性。基于验证的程序,开展约束空间内部爆炸波数值计算,研究密闭空间、泄压空间及连通空间内部的爆炸波传播规律与爆炸载荷特性。  结果  研究表明,所开发的程序能较好地模拟约束空间内的爆炸过程。  结论  该开发工作可为后续研究复杂空间内部爆炸波传播路径、评估爆炸载荷以及合理设计抗爆结构奠定基础。
  • 图  1  Sod激波管算例计算的压力曲线

    Figure  1.  Pressure curves calculated by the case of the sod shock tube

    图  2  双爆轰波碰撞算例计算的压力曲线

    Figure  2.  Pressure curves calculated by the case of the interacting blast wave

    图  3  典型位置处的空中爆炸压力时间历程对比

    Figure  3.  Comparisons of pressure time history of blast in air at typical locations

    图  4  密闭空间及测点分布示意图

    Figure  4.  Schematic diagram of closed space and arrangement of measuring points

    图  5  密闭空间内部的爆炸初始条件及网格分布

    Figure  5.  Initial conditions and mesh distribution in closed space

    图  6  密闭空间内爆炸初期压力分布云图

    Figure  6.  Pressure distribution at early stage in closed space

    图  7  密闭空间内部的爆炸载荷时间历程曲线图

    Figure  7.  Time histories of blast load at the gauging points in closed space

    图  8  泄压空间及测点分布示意图

    Figure  8.  Schematic diagram of venting space and arrangement of measuring points

    图  9  泄压空间内爆炸初场

    Figure  9.  Initial conditions in venting space

    图  10  泄压空间内爆炸初期压力分布云图

    Figure  10.  Pressure distribution at early stage in venting space

    图  11  泄压空间内部的爆炸载荷时间历程曲线

    Figure  11.  Time histories of blast load at the gauging points in venting space

    图  12  泄压口位置示意图

    Figure  12.  Schematic diagram of venting hole locations in venting space

    图  13  不同泄压口位置测点3爆炸载荷时间历程曲线

    Figure  13.  Time histories of blast load at gauging point 3 for different positions of venting hole

    图  14  不同泄压口边长测点3爆炸载荷时间历程曲线

    Figure  14.  Time histories of blast load at point 3 for different sizes of venting holes

    图  15  连通空间及测点分布示意图

    Figure  15.  Schematic diagram of connected space and arrangement of measuring points

    图  16  连通空间内爆炸初始条件及网格分布

    Figure  16.  Initial condition and mesh distribution in connected space

    图  17  连通空间内爆炸初期压力分布云图

    Figure  17.  Pressure distribution at early stage in connected space

    图  18  左约束空间内爆炸壁面测点1,2爆炸载荷时间历程曲线

    Figure  18.  Time histories of blast load at gauging point 1 and 2 in the left confined space

    图  19  右约束空间内爆炸壁面测点爆炸载荷时间历程曲线

    Figure  19.  Time histories of blast load at gauging point 3, 4 in the right confined space

    图  20  连通空间内爆炸壁面测点爆炸载荷时间历程曲线

    Figure  20.  Time histories of blast load at the gauging points in connected space

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出版历程
  • 收稿日期:  2016-11-28
  • 网络出版日期:  2017-05-12
  • 刊出日期:  2017-06-01

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