摘要
通过实验和理论研究表明:在点火、传火过程中,火药床受到压缩而引起的颗粒数密度不均匀分布是产生大振幅压力波的重要原因。在严重情况下,药粒被挤压而产生破碎,可能导致危险压力波的发生。文中揭示了压力波机理及其特征,为抑制压力波技术提供理论基础。
Experiment and theoretical research show that,in the process ofignition and flamespread,the main reason for large amplitude pressure wave isnon-uniform distribution of particle number density caused by compressed onpropellant bed. In some bad conditions,grain farctrue in compression processmay cauce the catastrophic pressure wave. This paper introduced the mecha-nism and characterislic analysis of pressure wave in gun,which served as thetheoretical basis for surpressing pressure wave techniques.
基金
国家自然科学基金
关键词
内弹道学
压力波
两相流动
火炮膛
interior ballistics
pressure waves
two-phase flow
