Analysis on Influence of the Igniting Condition on Interior Ballistics of Combustion Light Gas Gun

摘要：

　　In order to analyze the effect that the igniting condition of the combustion light gas gun on interior ballistics,the discharge process of electrode was simulated by releasing energy,the flow-field of hydrogen burning on interior ballistics of combustion light gas gun was simulated with computational fluid dynamics(CFD),turbulence and combustion was simulated by RNG k-ε two-equation model and eddy dissipating model(EDM).The result shows that when the diameter of chamber is small,sources of ignition move in a radial direction has little influence on interior ballistics.Ignition delay and the discharge time and energy affect the launch time of projectiles,while they have little impact on the muzzle velocity of projectiles.The more time and the greater amount of electrode of ignition delay,the less discharge time and energy,the projectile bore pressure waves is more obvious.However,when the discharge time and energy increase to a certain value,they are not effective in reducing the projectile bore pressure oscillations.

关键词： Interior Ballistics Igniting Condition Computational Fluid Dynamics

作者: Tao HUANG Xiangyan ZHANG Ning LIU Fei DENG

作者单位: School of Mechanical Engineering,Nanjing University of Science and Technology,Jiangsu,P.R.China

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 337-342

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）