关键词: 高加速度;固体推进剂火箭发动机;二相流;数值仿真;方案论证

Abstract: The mechanism was analyzed for the influences of high acceleration on the internal flow field and the ablation of insulator of SRM. A new method was developed which includes two parts. The first part is to solve the three-dimension two phase flow field of SRM under high acceleration condition by numerical simulation method and the second is to establish the ablation model of insulator by ablation experiment using flow field simulation equipment. Based on these studies the technique of insulator design and ablation prediction for SRM under high acceleration condition can be developed. The key technique is to develop a flow field simulation experimental method. Several projects were discussed and the siphon device seemed to be more feasible. To demonstrate the feasibility of this method, two phase flow field in siphon was analyzed by using numerical simulation method. The results showed that the siphon device can congregate particles to generate two phase flow with high density particles.

Key words: High acceleration;Solid propellant rocket engine;Two phase flow;Numerical simulation;Proposal research