|Table of Contents|

Study on muzzle flow field performance of pulsed gas cannon


Research Field:
Publishing date:


Study on muzzle flow field performance of pulsed gas cannon
Zhou PengCao CongyongDong Hao
School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China
pulsed gas cannons dynamic layering muzzle flow field computational fluid dynamics
In order to study the muzzle flow field structure of the pulsed gas cannon,the unsteady viscous compressible two dimensional axisymmetrical equation and the Spalart-Allmaras turbulence model are established.Combined with the dynamic layering meshing technique,the muzzle flow field produced by the projectile motion in the chamber is numerically simulated under the 0.5 MPa initial pressure,and the variation charts of mach number contours at different times are given.The development law of the muzzle flow field is studied in detail and the change law of projectile motion is analyzed further.The results show that the structure of muzzle flow field is mainly composed of some complex waves such as the muzzle shock wave,the projectile base shock wave,and the bottle shape shock wave.Affected by the complex muzzle flow field,the projectile motion velocity outside the barrel is weakly fluctuant.


[1] 汪送,战仁军.警用脉冲防暴水炮发射管内的建模与仿真[J].火力与指挥控制,2011,36(2):50-53.
Wang Song,Zhan Renjun.Model and simulation of launch pipe of police pulsed anti-riots water cannon[J].Fire Control and Command Control,2011,36(2):50-53.
[3]Crozier W D,Hume W.High-velocity light-gas gun[J].Journal of Applied Physics,1957,28(8):892-894.
Zhao Junli,Cao Feng.Practical interior ballistic equation of the gas-gun and its application[J].Journal of Gun Launch and Control,2003(3):48-51.
Zhong Weijun,Zhao Xiaoli,Qi Xinglin.Study on the modeling of the internal ballistic of a gas gun and launching environment simulation[J].Journal of Dynamics and Control,2005,3(1):61-65.
Zhao Xixin,Gao Yuanlou.Modeling and analysis of a gas gun[J].Hydraulics Pneumatics and Seals,2012(10):43-44.
Yu Wei,Zhu Bin,Zhang Xiaobing.Numerical simulation and analysis of muzzle flow field coupling with interior ballistic process[J].Nanjing University of Science and Technology,2009,33(3):335-338.
Dai Shulan,Xu Houqian,Sun Lei.Numerical simulation of gun muzzle flow field including movable boundary[J].Journal of Ballistics,2007,19(3):93-96.
Liu Zongchao,Jiao Zhigang,Guo Qiuping,et al.Numerical simulation of muzzle flow field of gun with moving projectile[J].Journal of Shenyang Ligong University,2011,30(6):74-77.
Wang Yang,Jiang Xiaohai,Guo Zeqing,et al.Numerical simulation on flow field of recoilless gun[J].Journal of Nanjing University of Science and Technology,2011,35(1):47-51.
Jiang Kun,Wang Hao.Numerical simulation of muzzle flow field based on dynamic meshing technique[J].Journal of Gun Launch and Control,2010(3):1-4.
Wang Xiaorong,Jiang Genzhu,Zhou Changsheng.Numerical simulation and analysis for flow field of RAM jet assisted projectile[J].Journal of Solid Rocket Technology,2009,32(4):400-403.


Last Update: 2016-10-30