Spectral insight into the interface evolution of a carbon/carbon composite under high-enthalpy, nonequilibrium flow

doi:10.1063/5.0166977

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Spectral insight into the interface evolution of a carbon/carbon composite under high-enthalpy, nonequilibrium flow
	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)
刊名	PHYSICS OF FLUIDS
	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
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关键词	LASER-INDUCED FLUORESCENCE ; OPTICAL-EMISSION SPECTROSCOPY ; SURFACE ; TEMPERATURE ; ABLATION ; PLASMAS ; REENTRY ; SENSORS ; SYSTEMS
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
内容类型	期刊论文
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.