航天推进技术研究院主办
[1]杜正刚,高玉闪,蔡国飙.气一气喷嘴结构分析[J].火箭推进,2009,35(03):6-10.
Du Zhenggang,Gao Yushan,Cai Guobiao.Structure pattern analysis of gas-gas inj ector[J].Journal of Rocket Propulsion,2009,35(03):6-10.
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Du Zhenggang,Gao Yushan,Cai Guobiao.Structure pattern analysis of gas-gas inj ector[J].Journal of Rocket Propulsion,2009,35(03):6-10.
气一气喷嘴结构分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
35
期数:
2009年03期
页码:
6-10
栏目:
研究与设计
出版日期:
2009-06-30
- Title:
- Structure pattern analysis of gas-gas inj ector
- Keywords:
- injector; double shear coaxial; flow rate; efficiency
- 分类号:
- V434
- 文献标志码:
- A
- 摘要:
- 对以气氢／气氧为推进剂的同轴剪切、离心和同轴双剪切结构的喷嘴进行设计， 分析了这三种结构型式的喷嘴结构尺寸；通过对同轴剪切式和同轴双剪切喷嘴燃烧室流场进 行数值模拟。研究喷嘴流量和结构对推进剂燃烧过程的影响。研究结果认为：同轴剪切式喷 嘴结构简单；离心式喷嘴的流量系数小且带有旋流室，导致喷嘴的结构尺寸大；同轴双剪切 喷嘴使推进剂在燃烧室内形成两个燃烧面，能在大流量下使推进剂达到高的燃烧效率。
- Abstract:
- The shear coaxial，swirl coaxial and double shear coaxial injector using the gaseous oxygen and hydrogen as propellants were designed to analyse its geometrical dimension．The reacting flow field in chambers of shear coaxial and double shear coaxial injector were simulated in combina· tion with the two equation k- tturbulence model to investigate the effect of mass flow rate and injector pattern on the combusting process．The results displayed that the structure of shear coaxial in— jector was simple；the small discharge coefficient as well as the swirl chamber made the outline size of swirl injector much bigger；the double shear coaxial injector created double flame fronts in the chamber and achieving high combustion efficiency at the condition of large mass flow rate．
参考文献/References:
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备注/Memo
收稿日期：2008—12—29；修回日期：2009--03-03。基金项目：“863”高技术项目。 作者简介：杜正刚(198卜)，男，博士生，研究领域为全流量补燃循环发动机技术研究。
更新日期/Last Update:
1900-01-01