Influence of Plasma on the Combustion Mode in a Scramjet
文献类型：期刊论文
| 作者 | Meng, Yu1,2; Gu, Hongbin1 ; Chen, Fang2; Chen F(陈芳); Gu HB(顾洪斌); Gu HB(顾洪斌); Chen F(陈芳)
|
| 刊名 | AEROSPACE
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 9期号:2页码:19 |
| 关键词 | scramjet combustion plasma microwave |
| DOI | 10.3390/aerospace9020073 |
| 通讯作者 | Gu, Hongbin(guhb@imech.ac.cn) |
| 英文摘要 | To examine the plasma-assisted combustion of a scramjet, a microwave-enhanced gliding arc plasma method was proposed in this study, and the flame structure and combustion instability were observed. The mechanism of plasma-assisted combustion was obtained via a Bunsen experiment, and then the influence on supersonic combustion was obtained on a direct-connected scramjet. The active species of the flame was determined via optical emission spectroscopy, and the flame temperature was measured with a thermocouple. The luminous intensity of the OH radicals in the flame increased ninefold when the flame temperature was increased to 1573 K, but the luminous intensity of CH* and C-2 was not obviously changed with the excitation of arc plasma. Moreover, the DC arc plasma had no effect on the rotation and the vibration temperature of OH radicals under these experimental conditions. In the range of microwave energy less than 800 W, there was no typical change in the intensity of the radicals; however, when the microwave power was up to 1000 W, the effect became obvious. When plasma was applied to the scramjet, the plasma caused the pre-combustion shock train to move forward, and the initial and stable position of the flame was transferred from the cavity shear layer to the front of the fuel jet. These results clearly show that plasma free radical mechanisms cause changes to combustion modes. |
| WOS关键词 | SURFACE-MICROWAVE-DISCHARGE ; FLAME STABILIZATION ; ASSISTED IGNITION ; FUELED SCRAMJET ; KEROSENE ; ENERGY ; PROPAGATION ; DYNAMICS ; FLOW |
| 资助项目 | Natural Science Foundation of Chongqing, China[cstc2021jcyj-msxmX1118] ; National Natural Science Foundation of China[11772342] ; Shanghai Post-Doctoral Excellence Program[2020251] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000765962700001 |
| 资助机构 | Natural Science Foundation of Chongqing, China ; National Natural Science Foundation of China ; Shanghai Post-Doctoral Excellence Program |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88742]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Gu, Hongbin; Gu HB(顾洪斌) |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Yu,Gu, Hongbin,Chen, Fang,et al. Influence of Plasma on the Combustion Mode in a Scramjet[J]. AEROSPACE,2022,9(2):19. |
| APA | Meng, Yu.,Gu, Hongbin.,Chen, Fang.,陈芳.,顾洪斌.,...&Chen F.(2022).Influence of Plasma on the Combustion Mode in a Scramjet.AEROSPACE,9(2),19. |
| MLA | Meng, Yu,et al."Influence of Plasma on the Combustion Mode in a Scramjet".AEROSPACE 9.2(2022):19. |
入库方式： OAI收割
来源：力学研究所
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