期刊文献+

基于动网格CFD技术的膛口弹前激波流场数值模拟 被引量:3

Numerical Simulation of Muzzle Blast Flow Field Based on Dynamic Mesh and CFD Technology
下载PDF
导出
摘要 针对数值模拟弹丸膛内加速运动造成的网格变化,采用分块网格划分的整体运动处理方法和基于动态层变方法的结构动网格技术,保证了数值网格的质量。模拟弹丸膛内运动的弹前激波流场,并描述了激波流场的形成,发展过程,实现了含运动弹丸的膛口激波流场模拟。数值计算结果与实验照片进行对比,弹前激波流场的形状和位置能较好吻合,表明数值模拟方法是合理可行的。 The muzzle initial flow field is the unsteady complex flow field with wave interruption.By use of the whole zone movement method and structured dynamic grid based on local layering method,the grid variation caused by projectile acceleration movement was analyzed.The blast flow field in front of projectile in movement in chamber was simulated,and formation and evolution process of the blast flow field were described.The simulation of muzzle blast flow field with movement projectile was realized.The results of numerical simulation coincide with that of experiment in terms of the shape and position of blast flow field in front of projectile,and this showed that the method is reasonable and feasible.
机构地区 军械工程学院
出处 《火炮发射与控制学报》 北大核心 2010年第4期84-87,共4页 Journal of Gun Launch & Control
关键词 流体力学 动网格 激波流场 数值模拟 fluid mechanics dynamic grid blast flow field numerical simulation
  • 相关文献

参考文献3

二级参考文献24

  • 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
  • 2江坤,钱林方.某火炮炮口制退器性能的研究[J].弹道学报,2006,18(3):55-57. 被引量:21
  • 3张辉,谭俊杰,崔东明.带膛口装置的流场数值模拟[J].火炮发射与控制学报,2007,28(2):48-51. 被引量:18
  • 4李鸿志 高树滋.带膛口装置的膛口流场与冲击波形成机理.南京理工大学学报,1982,6(3):1-26,82.
  • 5李鸿志,崔东明,范宝春.连续介质中的激波[M].北京:兵器工业出版社.1995:58-60.
  • 6Leveque Randall J. Finite Volume Methods for Hyperbolic Problems[M].Cambridge: Cambridge University Press, 2003,100-128.
  • 7LeVeque R J. Wave propagation algorithms for multi-dimensional hyperbolic systems[J]. Journal of Computational Physics, 1997,131:327-353.
  • 8Gillyboeuf J P, Mansuy P, Pavsic S. Two new chimera methods:application to missile separation[A/R] .AIAA papre 95-0353. In:33rd Aerospace Sciences Meeting and Exhibit[C].Reno, NV, 1995.
  • 9Menon S, Kim J -H. Large-Eddy simulation of afterburner flows[R]. Georgia tech Computational Combustion Laboratory, CLL Technical Report,2002-005, December 12,2002.[2007-07-23]http://www.ccl. gatech. edu/home html.
  • 10Schmidt E, Shear D. Optical measurements of muzzle blast[J]. AIAA J,1975,13(8): 1086-1093.

共引文献34

同被引文献25

引证文献3

二级引证文献7

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部