蓄压式燃气发生器内弹道分析与预计

针对我国姿态控制和轨道控制液体火箭发动机推进荆输送系统，围绕蓄压式燃气发生器内弹道预计开展研究。探讨了喷管在超临界状态和亚临界状态下其内部燃气流动的变化规律；分析了燃气发生器工作结束后在对流换热和稳态导热条件下燃气发生器和储气瓶内高温燃气与外界环境的换热过程；编写了内弹道计算程序，在试验论证的基础上，表明该程序可初步预计蓄压式燃气发生器内弹道性能。

Analysis and Prediction of the Accumulated Gas Generator's Interior Ballistics

According to the propulsion transport system of our country liquid rocket engine＇ s attitude control and orbit control, the research on interior ballistics of the Accumulated Gas Generator has been developed. The gas flow changes of nozzle under super critical state and inferior critical state have been analyzed. Under the conditions of convection heat exchange and the heat conduction of stable state, the process of heat exchange between the gas generator and outside ambient has been studied. Software of predicting the ballistics of gas generator has been compiled. Based on test, the results show that the software can estimate the Accumulated Gas Generator ballistic performance primarily.