随着装药的燃烧,固体火箭发动机燃烧室容腔不断地扩大,质量补充的注入速度也受到装药燃速的影响。本文利用Van Moorhem最近提出的平均处理法,从理论上定性分析了一维管流通道随时间变化和燃烧边界的运动对燃烧室不稳定性的作用。 With the combustion of the charge, the chamber of the solid rocket engine combustion chamber is continuously expanded, and the injection speed of the quality supplement is also affected by the burning rate of the charge. In this paper, Van Moorhem recently proposed averaging method to theoretically qualitatively analyze the effect of one-dimensional pipe flow path over time and combustion boundary on the combustion chamber instability.