水电弧加热发动机不稳定性分析和实验

Unstability Analysis and Experiment of Water Arcjet

通过实验发现导致水电弧加热发动机不稳定的主要原因为推进剂流量供给的汽化脉动,提出了毛细管束稳定汽化原理,采用毛细管束汽化系统,实现了水在管内的稳定汽化。以水为推进剂进行了性能实验,实验结果表明水电弧加热发动机在实验工况下能够稳定的工作。

Experimental research found that,the main reason which led to the unstability of water arcjet was the oscillation of propellant evaporation in pipes.The principle of stable evaporation in capillary bundle was presented and experimental system of evaporation in capillary bundle was developed.By this system,stable evaporation of water in pipes was achieved.Performance research was carried out when water was propellant.The experiment result proved that water arcjet could work stably in the working condition of...