5kN再生冷却发动机推力室传热研究

摘要

5 kN摇摆发动机推力室采用再生冷却身部,为检验推力室冷却方案设计的合理性,对5 kN再生冷却发动机推力室进行传热计算,分析了再生冷却的影响因素,并针对发动机设计提出了相应的改进措施,改进后的发动机热试车工作正常,表明了改进工作的有效性。%5 kN gimbaled engine adopts the regenerative cooling technology in the thrust chamber design.In order to validate the rationality of the cooling scheme of the thrust chamber,the heat transfer calculation on the regenerative cooling thrust chamber was conducted,and the effects of excess oxidizer coefficient and combustion chamber length on regenerative cooling were analyzed,and an improvement approach for the engine design was put forward.The redesigned engine worked properly in the firing test.It indicates that the improvement approach is effective.