摘要
在推导膛内两相流控制方程中,一些文献采用了公式A_g=α_gA。其中α_g 为空隙度即气相体积份数.本文通过对随机分布的火药颗粒定义一个概率分布函数,严格地从数学上对此式加以了证明.
The formula A_g=α_gA is often used in literature to derive control equation of interior ballistic two-phase flow,where α_g is porosity,i.e.fraction ofvolume occupied by gas phase.This pa- per presents a strict mathematical proof of the formula,by defining a probability distribution function for the arbitrary distribution of propellant grains.
关键词
内弹道学
二相流动
分布函数
interior ballistics
two-phase flow
distribution function
