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为模拟一甲基肼/四氧化二氮双组元推力器燃烧室的脉冲工作过程,分析研究了燃烧室工作过程涉及的喷注雾化、液滴运动、液滴蒸发、自燃点火、液膜流动、熄火等,在此基础上建立了分析双组元推力器燃烧室脉冲工况的准一维模型,并利用此模型对离心式10N双组元推力器的燃烧室脉冲工作过程进行了数值模拟,其仿真结果与发动机的工作参数和理论分析比较吻合,该模型为此类发动机的设计和性能分析提供了参考。
In order to simulate the pulsed operation of the monomethyl hydrazine / dinitrogen booster combustor, the effects of atomization, droplet movement, droplet evaporation, spontaneous ignition, liquid film Flow, flameout and so on. On this basis, a quasi-one-dimensional model for analyzing the pulse condition of a two-component thruster combustion chamber is established and the pulse operation of the centrifugal 10N two component thruster combustion chamber is numerically carried out by using the model The simulation results are in good agreement with the operating parameters and theoretical analysis of the engine. The model provides a reference for the design and performance analysis of such engines.