气氧甲烷火炬式点火器稳态仿真分析

为了对一种气氧甲烷点火器内部燃烧情况进行评估，针对该点火器的燃烧反应、流动及工作特点，应用CFD计算方法进行了稳态仿真分析。该点火器为保证其重复使用可靠性，采用电火花起火点燃高混合比燃气后补燃的设计，此种设计点火器内燃烧环境特殊，流场较为复杂，中国缺乏相应的设计经验。通过数值仿真很好地预测出了点火器的出口温度及烧蚀位置，并为该点火器的改进提供了参考。

Steady-state Simulation of GOX/Methane Spark Torch Igniter

Aiming at combustion reaction, flow field and work characteristics of the GOX/Methane spark torch igniter, steady-state simulation is conducted in CFD software to evaluate the internal combustion of the igniter. To ensure the reliability of the igniter, secondary combustion is used after firing the high mixing ratio gas by spark ignition. This design is lack of experience in China, the igniter combustion environment is special and flow field is complex. The numerical simulation results can predict the outlet temperature and the ablation location of the igniter, which provides reference for the improvement of the igniter.