Gas-surface interactions in a large-scale inductively coupled plasma wind tunnel investigated by emission/absorption spectroscopy

doi:10.1063/5.0102274

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

	Gas-surface interactions in a large-scale inductively coupled plasma wind tunnel investigated by emission/absorption spectroscopy
	Fang, Sihan 2,3; Lin, Xin 3; Zeng, Hui 1; Zhu, Xingying 1; Zhou, Fa 1; Yang, Junna 2,3; Li, Fei 3; Ou, Dongbin 1; Yu, Xilong 2,3
刊名	PHYSICS OF FLUIDS
	2022-08-01
卷号	34 期号:8 页码:14
ISSN号	1070-6631
DOI	10.1063/5.0102274
通讯作者	Lin, Xin(linxin_bit@imech.ac.cn)
英文摘要	Precise prediction of aerothermal loads is significantly limited by the unclear interactions between the thermal protection system surface and the surrounding high-enthalpy gas. To address this, we propose an optical diagnostic method based on optical emission spectroscopy and laser absorption spectroscopy to investigate the gas-surface interactions within the boundary layer. Experiments are conducted in an air plasma flow produced by the 1.2 MW inductively coupled plasma wind tunnel at the China Academy of Aerospace Aerodynamics with an enthalpy of 20 MJ/kg and a heating time of 100 s. The cylindrical samples made of pure silicon carbide are tested, and quartz samples with the same exposed geometry are tested in parallel as a reference material. The optical emission spectroscopy system has four spectrometers to cover the wide wavelength range of 200-1100 nm, providing qualitative, spatially, and spectrally resolved measurements of the multi-species radiative emission adjacent to the sample surface. Laser absorption spectroscopy is deployed at different axial locations to quantify the number density and translational temperature of OI (3s5S) with a 500 Hz scanning rate and 200 kHz acquisition rate. Additionally, the surface temperature of each sample is detected by an infrared pyrometer. Scanning electron microscopy and energy dispersive spectrometry are performed before and after the plasma heating. Our measurement results provide valuable information on surface reaction pathways and catalytic recombination effects on atomic oxygen number density distributions. Finally, these self-consistent results show that the proposed method is reliable to deeply investigate gas-surface interactions within boundary layer in harsh aerothermal environment. Published under an exclusive license by AIP Publishing.
资助项目	National Natural Science Foundation of China ; Key-Area Research and Development Program of Guangdong Province ; Youth Innovation Promotion Association of CAS ; [11802315] ; [11927803] ; [11872368] ; [12072355] ; [2021B0909060004] ; [2022018]
WOS关键词	OPTICAL-EMISSION SPECTROSCOPY ; LASER-ABSORPTION SPECTROSCOPY ; ATOMIC OXYGEN ; TEMPERATURE ; RECOMBINATION ; DIAGNOSTICS ; OXIDATION ; ABLATION ; CARBON
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000841283000008
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
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89904]
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	Lin, Xin
作者单位	1.China Acad Aerosp Aerodynam, Beijing Key Lab Arc Plasma Applicat Equipment, Beijing 100074, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fang, Sihan,Lin, Xin,Zeng, Hui,et al. Gas-surface interactions in a large-scale inductively coupled plasma wind tunnel investigated by emission/absorption spectroscopy[J]. PHYSICS OF FLUIDS,2022,34(8):14.
APA	Fang, Sihan.,Lin, Xin.,Zeng, Hui.,Zhu, Xingying.,Zhou, Fa.,...&Yu, Xilong.(2022).Gas-surface interactions in a large-scale inductively coupled plasma wind tunnel investigated by emission/absorption spectroscopy.PHYSICS OF FLUIDS,34(8),14.
MLA	Fang, Sihan,et al."Gas-surface interactions in a large-scale inductively coupled plasma wind tunnel investigated by emission/absorption spectroscopy".PHYSICS OF FLUIDS 34.8(2022):14.