关键词: 氢氧发动机;启动仿真;仿真模型;数值算法;述评

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