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膛口流场动力学过程数值研究

姜孝海 范宝春 李鸿志

姜孝海, 范宝春, 李鸿志. 膛口流场动力学过程数值研究[J]. 应用数学和力学, 2008, 29(3): 316-324.
引用本文: 姜孝海, 范宝春, 李鸿志. 膛口流场动力学过程数值研究[J]. 应用数学和力学, 2008, 29(3): 316-324.
JIANG Xiao-hai, FAN Bao-chun, LI Hong-zhi. Numerical Investigations on the Dynamic Process of the Muzzle Flow[J]. Applied Mathematics and Mechanics, 2008, 29(3): 316-324.
Citation: JIANG Xiao-hai, FAN Bao-chun, LI Hong-zhi. Numerical Investigations on the Dynamic Process of the Muzzle Flow[J]. Applied Mathematics and Mechanics, 2008, 29(3): 316-324.

膛口流场动力学过程数值研究

基金项目: 瞬态物理国家重点实验基金资助项目
详细信息
    作者简介:

    姜孝海(1975- ),湖北阳新人,博士(联系人.Tel:+86-25-843103236;Fax:+86-25-84315644;E-mail:xhjiang@mail.njust.edu.cn).

  • 中图分类号: TJ012.2

Numerical Investigations on the Dynamic Process of the Muzzle Flow

  • 摘要: 采用基于ALE方法的动网格及嵌入网格技术,运用有限体积方法,结合二阶精度Roe格式,对弹丸由高压气体驱动从静止状态加速至超音速,射出膛口到完全飞离初始流场的整个过程进行了数值模拟.根据数值结果,详细讨论了初始流场、火药燃气流场的形成与发展以及与弹丸的耦合和相互作用过程,揭示了在这一变化过程中激波与激波、激波与漩涡、激波与弹丸等的相互作用以及激波衍射、聚焦等对弹丸加速的影响.
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    [2] 李鸿志,尤国钊.带膛口装置的膛口流场与冲击波形成机理[J].华东工程学院学报,1979,1(2):1-26.
    [3] JIANG Zong-lin. Wave dynamic processed induced by a supersonic projectile discharging from a shock tube[J].Physics of Fluids,2003,15(6):1665-1675. doi: 10.1063/1.1566752
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    [9] JIANG Zong-lin, Takayama K, Skews B W. Numerical study on blast flowfields induced by supersonic projectiles discharged from shock tubes[J].Physics of Fluids,1998,10(1):277-288. doi: 10.1063/1.869566
    [10] Trepanier J Y,Reggio M, Zhang H,et al.A finite-volume method for the Euler equations on arbitrary Lagrangian-Eulerian grids[J].Computer Fluids,1991,20(4):399-409. doi: 10.1016/0045-7930(91)90081-R
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出版历程
  • 收稿日期:  2007-08-23
  • 修回日期:  2008-01-17
  • 刊出日期:  2008-03-15

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