| Experimental study of hysteresis and catastrophe in a cavity-based scramjet combustor | |
Zhang X(张旭); Zhang QF(张启帆) ; Wu ZJ(吴振杰); Yue LJ(岳连捷); Gao ZB(高占彪); Luo WH(罗苇航); Chen H(陈昊)
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| Source Publication | CHINESE JOURNAL OF AERONAUTICS
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| 2022-10 | |
| Volume | 35Issue:10Pages:118-133 |
| ISSN | 1000-9361 |
| Abstract | Hystereses and catastrophes were experimentally investigated in a cavity-based scramjet combustor. The inflow Mach number was 3.0. Fuel Equivalence Ratio (ER) was continuously regulated with multi-steps to explore influences of historical regulation directions on combustion states. Two divided hysteresis loops with catastrophes were observed. By 1-D flow estimations, the first loop occurred with shock-free/separated scramjet mode transitions, while the second kept in the separated scramjet mode. This breaks through the traditional knowledge that hysteresis and catastrophe were certainly related to ramjet/scramjet mode transitions. The first hysteresis and catastrophes were attributed to flame stabilization mode transitions between the cavity shearlayer stabilized and the jet-wake stabilized, with flow separation establishment/vanishment upstream the cavities. The obvious variations of flame and shock/separation structures meant large wall-pressure changes in the expansive duct, and generated obvious thrust catastrophes. Besides, transition ER and catastrophe were larger in historical ER-increasing path because combustion efficiency became obviously larger as flow separation established. Difference of critical transition ERs meant the first hysteresis. The second hysteresis and catastrophes in the jet-wake stabilized mode were attributed to flame/shock interaction mode transitions between the flame/shock weak interaction mode and intensive interaction mode. Each transition caused slightly stronger/weaker flame interacting with slightly larger/smaller flow separation, which meant small wall-pressure changes in the expansive duct, and thus thrust catastrophe was unobvious. Hysteresis occurred as the critical transition ER was slightly higher in historical ER-increasing path because of slightly lower combustion efficiency under slightly smaller separation. (C) 2021 Chinese Society of Aeronautics and Astronautics. Production and hosting by Elsevier Ltd. |
| Keyword | Catastrophe Cavity-based scramjet Flame stabilization Flame/shock interaction Hysteresis |
| DOI | 10.1016/j.cja.2021.08.008 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000931146300009 |
| WOS Research Area | Engineering, Aerospace |
| Funding Organization | National Natural Science Foundation of China [11902325, 11672309] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhang, QF (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92415 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.{Zhang Xu, Zhang Qifan, Wu Zhenjie, Yue Lianjie, Gao Zhanbiao, Luo Weihang, Chen Hao} Chinese Acad Sci Inst Mech State Key Lab High Temp Gas Dynam Beijing 100190 Peoples R China 2.{Zhang Xu, Wu Zhenjie, Yue Lianjie} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.{Chen Hao} Chinese Acad Sci Innovat Acad Light Duty Gas Turbine Beijing 100190 Peoples R China |
| Recommended Citation GB/T 7714 | Zhang X,Zhang QF,Wu ZJ,et al. Experimental study of hysteresis and catastrophe in a cavity-based scramjet combustor[J]. CHINESE JOURNAL OF AERONAUTICS,2022,35,10,:118-133.Rp_Au:Zhang, QF (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| APA | 张旭.,张启帆.,吴振杰.,岳连捷.,高占彪.,...&陈昊.(2022).Experimental study of hysteresis and catastrophe in a cavity-based scramjet combustor.CHINESE JOURNAL OF AERONAUTICS,35(10),118-133. |
| MLA | 张旭,et al."Experimental study of hysteresis and catastrophe in a cavity-based scramjet combustor".CHINESE JOURNAL OF AERONAUTICS 35.10(2022):118-133. |
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| Jp2023Fa051.pdf（4834KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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