火箭发动机水下分离特性试验研究

Research on underwater rocket separation performance

本文在大型压力水筒中研究了火箭发动机的水下分离特性。实验采用了锥型喷管,测量了火箭发动机在水下过膨胀条件下燃烧室压强和喷管扩张段不同截面处的压力。研究表明,与在空气中工作相比,火箭发动机在水下更容易产生气流分离。

The research on separation of underwater rocket flow in a large pressurized tank is presented. The experiment was carried out underwater in over-expanded conditions, using a conical divergence nozzle to measure the chamber pressure and the pressure in different sections of the divergence nozzle. The results show that the flow separation is easier for rocket in underwater condition than in the air.