期刊文献+

含运动边界的并联发射膛口流场数值模拟预测 被引量:2

Numerical Simulation on Muzzle Flow Field of Multi-barrel Gun Containing High-speed Projectiles
下载PDF
导出
摘要 对三管并联发射产生的含高速运动弹丸的膛口射流进行数值模拟计算,建立其数学物理模型,采用AUSM格式求解三维N-S方程,弹丸采用大位移运动边界的动网格技术处理,湍流模型采用Spalart-Allmaras模型。得到了含高速运动弹丸的膛口射流的结构和流动参数,预测了膛口射流与弹丸出膛口后的相互耦合作用。结果可为多管发射武器系统射击精度的预测提供必要依据。 A model of three-barrel gun including high speed projectiles was presented, the dynamics process of muzzle flow with projectiles was simulated by using AUSM scheme with N-S equation, and large displacement boundary of dynamic mesh, method were em- ployed to solve the Spalart-Allmaras. According to the predicted results, the blast wave patterns and development of the powder gas flow field in the vicinity of the muzzle were analyzed in detail to reveal the interrelationship between flow field and projectiles based on the nu- merical results. The results can be used for provide necessary basis of prediction in firing accuracy of multi-barrel gun weapon system.
出处 《弹箭与制导学报》 CSCD 北大核心 2012年第4期158-160,共3页 Journal of Projectiles,Rockets,Missiles and Guidance
基金 中北大学科学基金资助
关键词 并联发射 动网格 膛口射流 parallel launch dynamic mesh muzzle jet
  • 引文网络
  • 相关文献

参考文献4

二级参考文献12

  • 1桂巧昳.二维受扰超声速喷管流的动态分析[J].航空发动机,2004,25(3):1-4. 被引量:1
  • 2Alziary de Roquefort T, Cayac R. Theoretical and comparison of unsteady flow through a muzzle brake [C]. 13th International Symposium Ballistics, Stockholm, Sweden, 1992.
  • 3JIANG Zong-lin. Wave dynamic processed induced by a supersonic projectile discharging from a shock tube[J ]. Physics of Fluids, 2003, 15(6) : 1665 - 1675.
  • 4Cler D L, Chevaugeon N. CFD application to gun muzzle blast-a validation case study[R]. AlAA-2003-1142.
  • 5Rikio W, Fujii K, et al. Three-dimensional computation of the flow induced by a projectile overtaking a shock wave[R]. AlAA- 97-1840.
  • 6Lee In Cheol, Lee Duck-Joo. Numerical analysis of a blast wave using CFD-CAA hybrid method[R]. AlAA-2006-2701.
  • 7Trepanier J Y, Reggio M. A finite-volume method for the Euler equations on arbitrary Lagrangian-Eulerian grids [J ]. Computer Fluids, 1991, 20(4) :399 - 409.
  • 8Leveque R J. Finite volume methods for hyperbolic problems [ M ]. Cambridge : Cambridge University Press, 2003 : 100 - 128.
  • 9Gillyboeuf J P, Mansuy P, Pavsic S. Two new chimera methods: application to missile separation [ R ]. AlAA-95-0353.
  • 10李鸿志.多闪光高速照相机的发展及其在非定常流场研究中的应用.华东工学院学报,1988,(1):81-89.

共引文献34

同被引文献10

引证文献2

二级引证文献3

;
使用帮助 返回顶部