论文部分内容阅读
主要考虑影响比冲的温度因素,在原有N2O微推力器结构上提出了改进方案,对改进前后N2O微推力器推力室进行了三维流动传热耦合仿真,并采用改进后N2O微推力器开展催化分解试验研究.对比分析后发现减少推力室向外的热量传递能维持较高的分解气体温度,从而利于提升N2O微推力器比冲,并得到了影响微推力器比冲的结构参数,研究工作为N2O微推力器的优化设计提供了有益参考.
Mainly considering the temperature factors affecting the specific impulse, an improved scheme was proposed on the structure of the original N2O micro thruster. Three-dimensional flow heat transfer coupled simulation was performed on the thrust chamber of the N2O micro thrusters before and after the improvement, and the catalytic effect was improved by the improved N2O micro-thruster After the comparative analysis, it is found that reducing the heat transfer to the outside of the thrust chamber can maintain a higher decomposition gas temperature, which is beneficial to enhancing the specific impulse of the N2O micro thruster and obtaining the structural parameters that affect the micro thruster specific impulse. It provides a useful reference for the optimization design of N 2 O micro thrusters.