Abstract: The current status of research on numerical simulation of pre cooling and starting process of LOX/LH 2 rocket engine was surveyed, with relevant aspects as follows: numerical simulation for cryogenic fluid transient in propellant feed system, dynamic models of turbo pump and ignition process in the combustion chamber during startup, the order reducing methods for the system transient models, and numerical solvers for the system mathematical equations The deficiency of existing models and numerical methods were explained, and the development direction was suggested

Key words: Hydrogen oxygen engine;Takeoff simulation;Simulation model;Numerical algorithm;Review

摘要： 从预冷与启动过程推进剂供应管路内低温瞬变流计算、启动过程涡轮泵动态模型、燃烧室内点火过程动态模型、发动机瞬变模型的降阶方法及发动机系统动态方程解算的数值方法等几个方面 ,介绍了液氢液氧发动机预冷与启动过程数值模拟研究现状 ,分析了存在的问题 ,指出了进一步开展研究的方向

关键词: 氢氧发动机;启动仿真;仿真模型;数值算法;述评