摘要
针对金属风暴武器系统内弹道过程复杂的特点,建立了一维两相流模型,引入计算效率高的CTVD新算法,计算并详细分析了强耦合发射、弱耦合发射及非耦合发射情形下的内弹道过程,获得了膛底压力、弹丸速度随时间的变化规律.结果表明,发射频率越高,最大膛压越大,弹丸初速越小;在不考虑耦合效应的影响下,弹丸的装填位置越靠后,初速越大,最大膛压只受启动压力的影响,与弹丸的装填位置无关.
Aiming at the complicated characteristics of interior ballistic process of metal storm weapon, the one-dimensional two-phase flow model was established, and the CTVD algorithm with high efficiency was also introduced for numerical simulation. The interior ballistic process of metal storm weapon under strong coupling firing, weak coupling firing, and non-coupling firing were analyzed in detail based on the calculation results, and the variation courses of breed pressure and the bullet velocity with time were also obtained. The results show that the higher the firing frequency, the higher the maximum bore pressure and the lower the muzzle velocity of projectile. Under the conditions of ignoring the coupling effect, the nearer the distance between loading position of projectile and the rear end, the greater the muzzle velocity of projectile. The maximum bore pressure is only affected by dynamic pressure and is irrelevant to loading position.
出处
《弹道学报》
CSCD
北大核心
2008年第3期36-40,共5页
Journal of Ballistics
基金
江苏省研究生培养创新工程项目
江苏省高校"青蓝工程"中青年学术带头人基金项目(AB41608)
关键词
金属风暴武器
内弹道
数值模拟
CTVD格式
metal storm weapon
interior ballistics
numerical simulation
CTVD scheme
