|
|
|
|
|
|
Velocity Measurement Technology of Supersonic Flow Field Based on Spontaneous Emission Spectrum |
QI Xin-hua, CHEN Li*, YAN Bo, MU Jin-he, CHEN Shuang, ZHOU Jiang-ning |
Facility Design and Instrumentation Institute, China Aerodynamic Research and Development Center, Mianyang 621000, China |
|
|
Abstract The measurement of plasma state parameters is an important basis for studying plasma characteristics, including plasma simulated reentry environment, plasma stealth, plasma drag reduction, and boundary layer control. Based on the spontaneous emission spectrum of the plasma jet, a new method of plasma supersonic jet velocity is proposed in this paper. Firstly, the spontaneous emission spectrum generated by argon atoms in the plasma was measured, and the characteristic spectral line of 696.54 nm was selected as the moving light source for the speed measurement experiment of the plasma generator; secondly, the optical path of speed measurement was designed by using a spectrometer, energy transmission fiber, Electron-Multiplying CCD (EMCCD) camera and high spectral resolution Fabry-Perot (F-P) interferometer for high temperature plasma; finally, the velocity measurement experiment was carried out of supersonic jet on an argon wall stabilized arc plasma generator. In this experiment, the spontaneous emission spectrum of argon atom at the same measuring point was collected into a spectrometer by the collecting lens, which wasan angle of 49°and 90°between with the plasma jet motion direction, respectively. After being split by the spectrometer, only the characteristic line of 696.54 nm was retained into the energy transmitting optical fiber, to eliminate the influence of the spontaneous emission spectrum of other wavelengths; the characteristic emission spectrum from the spectrometer, which was transmitted by optical fiber and shaped into parallel light by the lens, irradiated the F-P interferometer with a fineness of 30 and a free spectral range of 6.6 GHz, then a multi-beam interference ring was formed and collected by an EMCCD camera, so as to realize the ultra-high precision resolution of characteristic spectral lines. According to the Doppler principle, the frequency shift of Ar 696.54 nm at the same measurement point collected at different angles was different, and the radius of the interference ring collected by EMCCD was also different. By measuring the radius of the interference ring formed by the characteristic spectral lines for the same level and different collection directions, the flow velocity of the high temperature plasma jet can be computed. The comparative experiments of two vehicles were carried out for the same nozzle, and the axial velocities of the two vehicles were 791 and 783 m·s-1, respectively, which had good repeatability. Based on the Doppler principle, the results show that, using the spontaneous emission spectrum of high temperature gas, combined with the high spectral resolution F-P interferometer, the high temperature plasma jet velocity can be accurately measured. This method belongs to non-contact measurement and does not interfere with the flow field and is especially suitable for the measurement of high temperature flow field, which is difficult to be applied by traditional sensors.
|
Received: 2020-05-30
Accepted: 2020-09-16
|
|
Corresponding Authors:
CHEN Li
E-mail: chenli_03@163.com
|
|
[1] SUN Zong-xiang(孙宗祥). Advances in Mechanics(力学进展), 2003, 33(1): 87.
[2] YANG Bo, BAI Xi-yao, BAI Min-dong, et al(杨 波,白希尧,白敏冬,等). Modern Defence Technology(现代防御技术), 2005, 33(3): 25.
[3] LIU Yao-ze, YUAN Cheng-xun, GAO Rui-lin, et al(刘耀泽,袁承勋,高瑞林,等). Chinese Journal of Luminescence(发光学报),2016,37(10):1299.
[4] YANG Wen-bin, ZHOU Jiang-ning, LI Bin-cheng, et al(杨文斌,周江宁,李斌成,等). Acta Physica Sinica(物理学报),2017,66(9):262.
[5] ZHANG Wei, CHEN Lei, SONG Peng, et al(张 维,陈 雷,宋 鹏,等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2018, 38(12): 3678.
[6] YANG Fu-rong, CHEN Li, YAN Bo, et al(杨富荣,陈 力,闫 博,等). Journal of Experiment in Fluid Mechanics(实验流体力学), 2018, 32(3): 82.
[7] CHEN Li, YANG Fu-rong, SU Tie, et al(陈 力,杨富荣,苏 铁,等). Acta Photonica Sinica(光子学报), 2015, 44(1): 0112004-1.
[8] Bivolaru D, Danehy P M, Lee J W, et al. Single-Pulse Multi-Component Interferometric Rayliegh Scattering Velocimeter. AIAA, 2006, AIAA-2006-0836, 44<sup>th</sup> Aerospace Sciences Meeting, Reno, NV, January 9-12, 2006.
[9] Mielke-Fagan A F, Clem M M, Elam K A. Rayleigh Scattering Measurements Using a Tunable Liquid Crystal Fabry-Perot Interferometer. AIAA, 2010, AIAA-2010-4350, 27<sup>th</sup> Aerodynamic Measurement Technology and Ground Testing Conference, Chicago, Illinois, 2010.
[10] Doll U, Stockhausen G, Willert C. Optics Letters, 2017, 42(19): 3773.
[11] Estevadeordal J, Jiang N B, Cutler A D, et al. Applied Physics B, 2018, 124: 41.
[12] ZHAO Kai-hua,LUO Wei-yin(赵凯华, 罗蔚茵). New Concept Physics Tutorial: Mechanics(新概念物理教程:力学). Beijing: Higher Education Press(北京:高等教育出版社),1995. 359.
[13] GUO Yong-kang(郭永康). Optics(光学). Beijing: Higher Education Press(北京:高等教育出版社),2005. 180.
[14] Chen Li, Yang Furong, Su Tie, et al. Chin. Phys. B, 2017, 26(2): 025205. |
[1] |
ZENG Si-xian1, REN Xin1, HE Hao-xuan1, NIE Wei1, 2*. Influence Analysis of Spectral Line-Shape Models on Spectral Diagnoses Under High-Temperature Conditions[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2715-2721. |
[2] |
SONG Ni-na1, XIAO Dong1*, LI Sen1, GAO Yu-jie2. Analysis of Soil Salinity Based on Spectrum and RVIPSO-MELM[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(08): 2482-2487. |
[3] |
WANG Nan1, 2, 3, XUAN Hong-wen3, LI De-hua3, NIE Yu-xin3. Measurement of Speed Distribution of Kerosene Flame by Using Photothermal Deflection Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(11): 3353-3357. |
[4] |
LÜ Meng-qi1, SONG Yu-jie4, WENG Hai-yong1, 3, SUN Da-wei1, 3, DONG Xiao-ya2, FANG Hui1, 3, CEN Hai-yan1, 3*. Effect of Near Infrared Hyperspectral Imaging Scanning Speed on Prediction of Water Content in Arabidopsis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(11): 3508-3514. |
[5] |
YAO Dong-mei1, 2, LU Shan-shan1, WEN Gui-qing1, LIANG Ai-hui1, JIANG Zhi-liang1*. Determination of Trace Urea by Resonance Rayleigh Scattering-Energy Transfer Spectroscopy Coupled With Polystyrene Nanoprobe and Dimethylglyoxime Reaction[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(11): 3590-3593. |
[6] |
KONG De-ming1, 3, LI Yu-meng1, CUI Yao-yao2*, ZHANG Chun-xiang1, WANG Shu-tao1. Correction Methods of Rayleigh Scattering of Three-Dimensional Fluorescence Spectra of Spilled Oil on Sea[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(09): 2791-2797. |
[7] |
CHEN Dong-jie1, 2, JIANG Pei-hong1, 2, GUO Feng-jun1, 2, ZHANG Yu-hua1, 2*, ZHANG Chang-feng1, 2. Effects of Prediction Model of Kolar Pear Based on NIR Diffuse Transmission under Different Moving Speed on Online[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(06): 1839-1845. |
[8] |
SUN Ming-chen1, 2, WU Xiao-cheng1*, HU Xiong1. Analysis of Simulation Results of Orbit Observation of Stellar Occultation Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(01): 298-304. |
[9] |
SHANG Jing-cheng1, WU Tao1*, YANG Chuan-yin1, MAO Qi-bo2, HE Xing-dao1. The Temperature Measurement of Air Based on Spontaneous Rayleigh-Brillouin Scattering[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(10): 2998-3006. |
[10] |
LIU Ji1,2, WU Jin-hui1, YU Li-xia2, ZHANG Jing2, YANG Qi2. A Split-Type Reflective Method to Measure the Velocity of the Underwater Weapon[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(01): 26-30. |
[11] |
WANG Yu, TAN Tu, WANG Gui-shi, GAO Xiao-ming*. Optical Design and Analysis of Laser Precipitation Monitor[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(12): 3952-3957. |
[12] |
CAI Yun-fang1,2, JI Kai-fan1, XIANG Yong-yuan1*. Extraction of Solar Spectral Information Based on Principal Component Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(09): 2847-2852. |
[13] |
HUANG Zi-qiang1, BAI Jian-bo1,2*, LU Xiao1, CHEN Bing-yan1, LUO Peng1, LI Hua-feng1, ZHANG Chao1. Theoretical and Experimental Study on Radiation Characteristics of Nanofluids[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(03): 676-680. |
[14] |
YAN Zheng-zhou1,2,5, DENG Li-cai1, ZHANG Chun-guang1, LUO Chang-qing1, Grundahl F3, HU Zhong-wen4, JI Hang-xin4, WANG Jia-ning4, XU Ming-ming4, DAI Song-xing4, Andersen M F3, WANG Kun5, TIAN Jian-feng1. SONG-China Project High Resolution Spectrograph and High Precision Radial Velocity Measurements of Asteroseismology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(02): 621-626. |
[15] |
YANG Xiong, CHENG Mou-sen, WANG Mo-ge*. Ion Velocity Distribution Function Measurement Based on the Method of Bidirectional Polarized Laser Induced Fluorescence[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(08): 2346-2351. |
|
|
|
|