关键词: 固体推进剂火箭发动机;燃烧产物;二相流;RTR技术~+

Abstract: In order to understand the flow pattern in a firing SRM deeply, authors try to explorea new way to investigate its working process by using RTR (X-ray Real-Time Radiography) alongwith an advanced digital image processor and high speed motion analyzer. In this paper the authorsfirst give a summary about the research situation and development tendency of two-phase flow inSRMs, and then introduce the test fundamental of RTR technique. The authors also inquire into thefeasibility on applying RTR technique to study the particle trajectory in a firing SRM combustor andconclude that: (1) With some other auxiliary means, RTR technique can be used to measure theparticles trajectory in a two dimensional firing conbustion chamber. (2) Adequate image processingmethods and selection of particle material are the key links to successful results. Image processing willbe described in part Ⅱ. The study on this subject will set up a new field in two-phase flow research.

Key words: Solid propellant rocket engine;Combustion product;Two phase flow;RTR technique~+