| Study on Flame Stabilization in a Dual-Mode Combustor Using Optical Measurements |
| Yuan YM(袁越明); Zhang TC(张泰昌) ; Yao W(姚卫); Fan XJ(范学军); Fan, XJ (reprint author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
|
| 发表期刊 | JOURNAL OF PROPULSION AND POWER
 |
| 2015-12
|
| 卷号 | 31期号:6页码:1524-1531 |
| ISSN | 0748-4658
|
| 摘要 | Flame stabilization in a dual-mode scramjet combustor was studied using simultaneous detection of flowfield and reaction zone. The instantaneous reactive flowfield was clearly visualized using an improved pulsed schlieren system, whereas the reaction zone was marked by CH* chemiluminescence. Experiments were performed in a Mach 2.5 model combustor with the total temperature of 1275 +/- 25 K and the total pressure of 1.0 MPa. Ethylene was used as fuel with equivalence ratios varied from 0.258 to 0.411. Four typical flame stabilized locations and corresponding flowfields are presented. When no choke occurs, the flame is stabilized in the cavity or the shear layer. Schlieren images show that the flow in the reaction zone of the latter case is supersonic. When the combustor is choked at the injection location, the flame oscillates between the shear layer and the jet wake, and the flow in the reaction zone becomes subsonic. When the flame is stabilized in the jet wake, autoignition can occur due to the compression of precombustion shock train. The short-lived aerodynamic throat formed near the injection location may be the possible cause for triggering the unsteady flame oscillation. The effects of heat release on flame stabilization modes are discussed. |
| DOI | 10.2514/1.B35689
|
| URL | 查看原文
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000368248000002
|
| 关键词[WOS] | SUPERSONIC-COMBUSTION
; SCRAMJET ENGINE
; CAVITY FLAMEHOLDER
; KEROSENE
; MECHANISMS
; IGNITION
; FLOW
|
| WOS研究方向 | Engineering
|
| WOS类目 | Engineering, Aerospace
|
| 项目资助者 | Current research program at the Chinese Academy of Sciences was supported by the National Nature Science Foundation of China under contract number 91016005, 10621202, and the Youth Innovation Fund of LHD. The authors would like to acknowledge G. Yu, J. R. Zhao, L. J. Meng, and X. S. Wei for their helpful discussion and technique support.
|
| 课题组名称 | LHD超声速燃烧
|
| 论文分区 | 二类/Q2
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/58638
|
| 专题 | 高温气体动力学国家重点实验室
|
| 通讯作者 | Fan, XJ (reprint author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Yuan YM,Zhang TC,Yao W,et al. Study on Flame Stabilization in a Dual-Mode Combustor Using Optical Measurements[J]. JOURNAL OF PROPULSION AND POWER,2015,31,6,:1524-1531.
|
| APA |
袁越明,张泰昌,姚卫,范学军,&Fan, XJ .(2015).Study on Flame Stabilization in a Dual-Mode Combustor Using Optical Measurements.JOURNAL OF PROPULSION AND POWER,31(6),1524-1531.
|
| MLA |
袁越明,et al."Study on Flame Stabilization in a Dual-Mode Combustor Using Optical Measurements".JOURNAL OF PROPULSION AND POWER 31.6(2015):1524-1531.
|
修改评论