| 燃气发生器结构对燃烧性能的影响 |
| |
| 引用本文： | 李庆,李清廉,王振国.燃气发生器结构对燃烧性能的影响[J].航空动力学报,2008,23(11):2062-2067. |
| |
| 作者姓名： | 李庆 李清廉 王振国 |
| |
| 作者单位： | 国防科技大学航天与材料工程学院; |
| |
| 摘 要： | 为了确定最佳的燃气发牛器结构,对不同结构的燃气发生器进行了对比试验,考察了喷嘴尺寸、燃烧室长度、燃烧室构型等因素对燃气发牛器燃烧性能的影响.研究结果表明:在一定范围内增大喷嘴尺寸,燃烧性能基本不受影响,但却可以缩短燃气发生器的点火延迟时间,并且增大流量调节范围;增加燃烧室长度可以明显的提高燃烧效率;燃烧室的构型对燃烧性能有很大影响,收缩一扩张型着火段影响了燃烧过程.降低了燃烧效率,燃气发生器设计不宜采用这种构型.
|
| 关 键 词： | 点火延迟 着火时间 特征长度 燃烧室构型 燃烧效率 |
| 收稿时间： | 2007/11/13 0:00:00 |
| 修稿时间： | 2008/3/10 0:00:00 |
Effect of structure of gas generator on combustion performance |
| |
| LI Qing,LI Qing-lian and WANG Zhen-guo.Effect of structure of gas generator on combustion performance[J].Journal of Aerospace Power,2008,23(11):2062-2067. |
| |
| Authors: | LI Qing LI Qing-lian and WANG Zhen-guo |
| |
| Institution: | LI Qing,LI Qing-lian,WANG Zhen-guo(College of Aerospace , Material Engineering,National University of Defense Technology,Changsha 410073,China) |
| |
| Abstract: | Hot tests were conducted and experimental data was analyzed in order to select an optimal structure for gas generator.The combustion performance was analyzed and the size of injectors,the characteristic chamber length and the geometric characteristic of combustor was examined.The results suggest that:In a certain extant enlarging the size of injectors does not affect the combustion efficiency,at the same time the ignition delay is shorten and the boundary of adjustment of mass flow rate is expanded;Increase... |
| |
| Keywords: | ignition delay flame spread time characteristic chamber length geometric characteristic of combustor combustion efficiency |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
