| Experimental study on shock wave control in high-enthalpy hypersonic flow by using SparkJet actuator | |
Xie, Wei; Luo, Zhenbing; Zhou, Yan; Gao, Tianxiang; Wu, Yun1; Wang Q(汪球)
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| Source Publication | ACTA ASTRONAUTICA
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| 2021-11 | |
| Volume | 188Pages:416-425 |
| ISSN | 0094-5765 |
| Abstract | SparkJet (SPJ) actuator was used to control shock and shock-on-shock interaction in high-enthalpy hypersonic flow with a total temperature of 4490 K and Mach number 6.9 for the first time. Aiming at the characteristics of rarefied gas in hypersonic flight environment, the control authority of SPJ actuator was improved by air supply method. The process of SPJ interacting with high-enthalpy hypersonic crossflow near a ramp was obtained by using high-speed schlieren camera. When pressurized cavity pressure was 133 kPa, ramp distance was 22 mm and ramp angle was 50, SPJ can eliminate 68.3 % of the whole ramp shock. Results of different experiment cases showed that, within a certain range, the control effect of SPJ on ramp shock improves with the increase of pressurized cavity pressure, ramp distance and the -12rease of ramp angle. The elimination of shock by SPJ can be explained by the upward motion of the sonic line in the boundary layer due to the formation of SPJ shock, the thickening of boundary layer and the heating of local flow field. Except for the elimination of shock, the shock intersection point moves upstream and downstream corresponding to the strength changes of SPJ and SPJ shock. Accordingly, local high heat flow around the shock intersection point can be -12reased. The control effect of SPJ on shock-on-shock interaction can be improved by properly increasing discharge energy. |
| Keyword | SparkJet High-enthalpy hypersonic flow Shock control Shock-on-shock interaction Air supply |
| Subject Area | Engineering, Aerospace |
| DOI | 10.1016/j.actaastro.2021.07.032 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000693831100037 |
| Funding Organization | National Natural Science Foundation of China [12002377, 11972369, 11872374, 52075538] |
| Classification | 二类/Q1 |
| Ranking | 3+ |
| Contributor | Luo, ZB ; Zhou, Y (corresponding author), Natl Univ Def Technol, Changsha 410073, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90229 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Natl Univ Def Technol, Changsha 410073, Peoples R China 2.Air Force Engn Univ, Xian 710038, Peoples R China 3.Chinese Acad Sci, Inst Mech, Beijing 100097, Peoples R China |
| Recommended Citation GB/T 7714 | Xie, Wei,Luo, Zhenbing,Zhou, Yan,et al. Experimental study on shock wave control in high-enthalpy hypersonic flow by using SparkJet actuator[J]. ACTA ASTRONAUTICA,2021,188:416-425.Rp_Au:Luo, ZB, Zhou, Y (corresponding author), Natl Univ Def Technol, Changsha 410073, Peoples R China. |
| APA | Xie, Wei,Luo, Zhenbing,Zhou, Yan,Gao, Tianxiang,Wu, Yun,&汪球.(2021).Experimental study on shock wave control in high-enthalpy hypersonic flow by using SparkJet actuator.ACTA ASTRONAUTICA,188,416-425. |
| MLA | Xie, Wei,et al."Experimental study on shock wave control in high-enthalpy hypersonic flow by using SparkJet actuator".ACTA ASTRONAUTICA 188(2021):416-425. |
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