描述了液体火箭发动机燃烧室内喷雾燃烧与流动过程仿真软件ＣＡＦＩＬＲＥ（Ｃｏｍｂｕｓ－ｔｉｏｎ　ａｎｄ　Ｆｌｏｗｉｎ　Ｌｉｑｕｉｄ　Ｒｏｃｋｅｔ　Ｅｎｇｉｎｅ）的结构和功能。ＣＡＰＩＬＲＥ程序是采用模块化方法编制和发展的二维通用软件，具有模拟发动机燃烧室内推进剂雾化过程、浓雾蒸发过程、湍流混合与燃烧过程的能力。用此软件可以对发动机内部进行详细的性能分析和参数优化。 The structure and function of CAFILRE (Combus-tion and Flowin Liquid Rocket Engine), which is used to simulate the spray combustion and flow in a liquid rocket engine combustion chamber, are described. The CAPILRE program is a two-dimensional general-purpose software developed and developed using a modular approach. It has the ability to simulate propellant atomization, fog evaporation, turbulent mixing and combustion in the engine combustion chamber. With this software you can perform detailed performance analysis and parameter optimization of the internal engine.