潜入喷管背壁区熔渣溢流沉积实验研究  

Experimental study on slag accumulation in back wall region of SRM submerged nozzle

作　　者：胡春波[1] 何国强[1] 刘佩进[1] 陈剑[1] 蔡体敏[1] 方国尧[2] 

机构地区：[1]西北工业大学航天工程学院,陕西西安710072 [2]北京航空航天大学宇航学院,北京100083

出　　处：《推进技术》2001年第3期204-206,共3页Journal of Propulsion Technology

基　　金：国家重点实验室基金资助

摘　　要：利用X射线诊断系统 ,观察了固体火箭发动机热试车条件下潜入喷管背壁区熔渣粒子的溢流过程 ,得到了实验条件下的潜入喷管背壁区熔渣生成沉积数据和图像 ,分析探讨了喷管潜入深度、喷管喉部面积对背壁熔渣生成和溢流过程的影响 ,为发动机的设计提供了实验依据。Real time X-ray radiography system was used to observe the slag accumulation and flow of back wall region of submerged nozzle in solid rocket motor. Data and image were obtained. The main conclusions are as follow: (1) There exist slag particles in all back wall region, and the particle concentration is low in the center of back wall region. (2) When the submerged depth varies from 23 mm to 33 mm, the slag weights increase. (3) As the area of nozzle throat reduces, the slag accumulation also increases.

关 键 词：固体推进剂 火箭发动机 潜入式喷管 X射线荧光分析 沉积物 背壁区 熔渣溢流沉积 

分 类 号：V435.23[航空宇航科学与技术—航空宇航推进理论与工程]