Spectral insight into the interface evolution of a carbon/carbon composite under high-enthalpy, nonequilibrium flow
文献类型：期刊论文
| 作者 | Fang SH(方思晗); Lin X(林鑫) ; Yang JN(杨俊娜); Zeng, Hui; Zhu, Xingying; Zhou, Fa; Ou, Dongbin; Li FI(李飞i); Yu XL(余西龙)
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| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 35期号:10页码:13 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0166977 |
| 通讯作者 | Lin, Xin(linxin_bit@imech.ac.cn) |
| 英文摘要 | Gas-surface interactions between thermal protection materials and high-enthalpy nonequilibrium flow are one of the greatest challenges in accurately predicting aerodynamic heating during supersonic flights. Finer microscopic details of flow properties are required for elaborate simulation of these interactions. Spectral insight, with quantum-state-specific characteristics, is provided in this work to investigate the physico-chemical processes in high temperature interface of a carbon/carbon (C/C) composite. The nonequilibrium air flow is produced by a 1.2 MW inductively coupled plasma wind tunnel at an enthalpy of 20.08 MJ/kg. The duration of each test is up to 100s, and quartz is also tested for comparison. Spectral insights into the reaction mechanisms of the gas-surface interactions are acquired by the optical emission spectroscopy and laser absorption spectroscopy. Dynamic evolution of the chemical reaction pathways and thermal nonequilibrium are discussed based on the results of optical emission spectroscopy. Temporally and spatially resolved results of the translational temperature and number density of atomic oxygen are quantified by laser absorption spectroscopy. Controlling mechanisms in the surface chemistry are further analyzed in conjunction with the surface temperature, scanning electron microscopy, and energy dispersive spectroscopy. Reaction mechanisms on the C/C composite surface sequentially experience an oxidation-dominant, an intense competitive, a nitridation-dominant, and a recession dominant period. Distributions in the axial direction and dynamic characteristics of the translational temperature and number density of atomic oxygen are found closely related with surface swelling, recession, and chemical reactions. The results herein are consistent with each other and are instructive to further investigate the interface evolution on C/C composites. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | LASER-INDUCED FLUORESCENCE ; OPTICAL-EMISSION SPECTROSCOPY ; SURFACE ; TEMPERATURE ; ABLATION ; PLASMAS ; REENTRY ; SENSORS ; SYSTEMS |
| 资助项目 | National Natural Science Foundation of China[92271117] ; National Natural Science Foundation of China[11802315] ; National Natural Science Foundation of China[12072355] ; National Natural Science Foundation of China[11927803] ; Key-Area Research and Development Program of Guangdong Province[2021B0909060004] ; Youth Innovation Promotion Association of CAS[2022018] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001136559400002 |
| 资助机构 | National Natural Science Foundation of China ; Key-Area Research and Development Program of Guangdong Province ; Youth Innovation Promotion Association of CAS |
| 其他责任者 | Lin, Xin |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94204]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Fang SH,Lin X,Yang JN,et al. Spectral insight into the interface evolution of a carbon/carbon composite under high-enthalpy, nonequilibrium flow[J]. PHYSICS OF FLUIDS,2023,35(10):13. |
| APA | 方思晗.,林鑫.,杨俊娜.,Zeng, Hui.,Zhu, Xingying.,...&余西龙.(2023).Spectral insight into the interface evolution of a carbon/carbon composite under high-enthalpy, nonequilibrium flow.PHYSICS OF FLUIDS,35(10),13. |
| MLA | 方思晗,et al."Spectral insight into the interface evolution of a carbon/carbon composite under high-enthalpy, nonequilibrium flow".PHYSICS OF FLUIDS 35.10(2023):13. |
入库方式： OAI收割
来源：力学研究所
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