|Table of Contents|

Numerical Simulation on Flow Field of Recoilless Gun

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2011年01期
Page:
47-51
Research Field:
Publishing date:

Info

Title:
Numerical Simulation on Flow Field of Recoilless Gun
Author(s):
WANG Yang1JIANG Xiao-hai1GUO Ze-qing1YANG Xu-pu2
1. National Key Laboratory of Transient Physics,NUST,Nanjing 210094,China; 2. School of Science,PLA University of Science and Technology,Nanjing 210007,China
Keywords:
recoilless gun flow characteristics overpressure contours safety zones
PACS:
TJ012. 2
DOI:
-
Abstract:
In order to study complex characteristics of the flow field of a recoilless gun,the front and back flow field of the recoilless gun with moving projectile is numerically simulated using the finite volume method,AUSM+scheme and chimera grids technique. According to the simulation results,sequential computational shadowgraphs and overpressure contours around the gun are plotted. The formation and development processes of the whole flow fields are discussed in detail. In terms of the relevant military standards,the safety zones for the gun crew are also analyzed. These results are very significant for understanding the characteristics of the flow field of the recoilless gun and predicting the blast damage on the gun crew.

References:

[1] 金志明. 枪炮内弹道学[M]. 北京: 北京理工大学出版社,2004.
[2] 王毓麟,范世绵. 无后坐炮炮尾喷管的失效分析[J]. 兵器材料科学与工程,1991,6: 31-32.
[3] Neves A M,Guimaraes C S,Schiller L A,et al. Recoilless gun: Analysis of internal and external ballistics [R]. Cincinnati,USA: AIAA- 2007- 5160,2007.
[4] Trepanier J Y,Reggio M,Zhang H,et al. A finitevolume method for the Euler equations on arbitrary Lagrangian- Eulerian grids[J]. Computer Fluids,1991,20 ( 4) : 399-409.
[5] Liou M S. A seque to AUSM: AUSM+[J]. Journal of Computational Physics,1996,129( 2) : 364-382.
[6] Liou M S. Mass flux schemes and connection to shock instablity[J]. Journal of Computational Physics,2000, 160( 2) : 623-648.
[7] Hong L,Joseph D B,Rainald L. On the computation of multi-material flows using ALE formulation[J]. Journal of Computational Physics,2004,194( 1) : 304-328.
[8] 姜孝海,范宝春,李鸿志. 基于ALE 方程的动网格膛口流场数值研究[J]. 计算力学学报,2008,25( 4) : 327-353.
[9] 王杨,郭则庆,姜孝海. 关于冲击波超压峰值的数值计算[J]. 南京理工大学学报( 自然科学版) ,2009, 33( 6) : 770-773.

Memo

Memo:
-
Last Update: 2012-02-28