全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
力学学报  2014 

基于CN自由基的火星再入流场温度测量

DOI: 10.6052/0459-1879-13-224, PP. 201-208

Keywords: 发射光谱,谱线强度,火星再入,转动温度,振动温度

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用氰自由基(CN)B2Σ+→X2Σ+电子带系的发射光谱温度测量技术诊断模拟火星再入流场高温气体的温度.以双原子分子光谱理论为基础,通过确定CN自由基B2Σ+→X2Σ+电子带系中Δv=0振动带系发射光谱的跃迁波数、Einstein跃迁几率以及不同振转能级粒子数等参数,得到了任意转动温度和振动温度下的理论光谱强度分布,结合经窄线宽半导体激光器标定的仪器展宽(Lorentz线型,半宽度FWHM为0.154nm),为CN自由基B2Σ+→X2Σ+电子带系发射光谱测温技术提供理论依据.利用激波管模拟火星再入流场环境,通过分析激波波后不同时刻处高时间、空间分辨率的CN自由基发射光谱,得到了激波波后高温气体不同时刻处的转动温度和振动温度,并根据得到的温度信息给出了激波诱导时间和弛豫时间.

References

[1]  Sharma M, Austin JM, Glumac NG, et al. NO and OH spectroscopic vibrational temperature measurements in a post-shock relaxation region. AIAA Journal, 2010, 48: 1434-1443
[2]  Park C, Howe JT, Jaffe RL, et al. Review of chemical-kinetic problems of future nasa missions, Ⅱ: Mars entries. Journal of Thermophysics and Heat Transfer, 1994, 8: 9-23
[3]  Braun RD, Manning RM. Mars exploration entry, descent, and landing challenges. Journal of Spacecraft and Rockets, 2007, 44: 310-323
[4]  Park C. Evaluation of real-gas phenomena in high-enthalpy impulse test facilities: A review. Journal of Thermophysics and Heat Transfer, 1997, 11: 10-18
[5]  Bultel A, Chéron BG, Bourdon A, et al. Collisional-radiative model in air for earth re-entry problems. Physics of Plasmas, 2006, 13: 043502
[6]  Lin X, Yu XL, Li F, et al. Measurements of non-equilibrium and equilibrium temperature behind a strong shock wave in simulated martian atmosphere. Acta Mechanica Sinica, 2012, 28: 1296-1302
[7]  Ndiaye AA, Lago V. Optical spectroscopy investigation of N2-CH4 plasma jets simulating titan atmospheric entry conditions. Plasma Sources Science and Technology, 2011, 20: 015015
[8]  Cipullo A, Filippis FD, Zeni L. Temperature measurements of the air plasma flow using optical emission spectroscopy. Journal of Thermophysics and Heat Transfer, 2011, 25: 354-360
[9]  Boubert P, Rond C. Nonequilibrium radiation in shocked martian mixtures. Journal of Thermophysics and Heat Transfer, 2010, 24: 40-49
[10]  Bose D, Wright MJ, Bogdanoff DW, et al. Modeling and experimental assessment of CN radiation behind a strong shock wave. Journal of Thermophysics and Heat Transfer, 2006, 20: 220-230
[11]  Rond C, Boubert P, Félio JM, et al. Nonequilibrium radiation behind a strong shock wave in CO2-N2. Chemical Physics, 2007, 340: 93-104
[12]  Rond C, Boubert P, Félio JM, et al. Radiation measurements in a shock tube, for titan mixtures. Journal of Thermophysics and Heat Transfer, 2007, 21: 638-646
[13]  Babou Y, Riviére P, Perrin MY, et al. Spectroscopic study of microwave plasmas of CO2 and CO2-N2 mixtures at atmospheric pressure. Plasma Sources Science and Technology, 2008, 17: 045010
[14]  屠昕, 严建华, 马增益, 等. 基于N2+ (B2Σu+ to X2Σg+)的电弧等离子体振动温度和转动温度测量. 光谱学与光谱分析, 2006, 26(12): 2161-2165 (Tu Xin, Yan Jianhua, Ma Zengyi, et al. Measurement of rotational and vibrational temperatures in arc plasma based on the first negative system of N2+ (B2Σu+ to X2Σg+). Spectroscopy and Spectral Analysis, 2006, 26(12): 2161-2165 (in Chinese))
[15]  董丽芳, 李永辉, 陈文军等. 空气介质阻挡放电中氮分子离子的转动温度研究. 光谱学与光谱分析, 2007, 27(12): 2406-2408 (Dong Lifang, Li Yonghui, Chen Wenjun, et al. Measurement of N2^{ + rotational temperature in air dielectric barrier discharge. Spectroscopy and Spectral Analysis, 2007, 27(12): 2406-2408 (in Chinese))
[16]  彭志敏, 丁艳军, 翟晓东. 基于火焰发射光谱的转动温度和振动温度的测量. 物理学报, 2011, 60: 104702 (Peng Zhimin, Ding Yanjun, Zhai Xiaodong. Measurements of rotational and vibrational temperatures based on flame emission spectroscopy. Acta Physica Sinica, 2011, 60: 104702 (in Chinese))
[17]  Ram RS, Davis SP, Wallace L, et al. Fourier transform emission spectroscopy of the B2Σ+→X2Σ+ system of CN. Journal of Molecular Spectroscopy, 2006, 237: 225-231
[18]  Knowles PJ, Werner HJ, Hay PJ, et al. The A2Ⅱ-X2Σ+ red and B2Σ+→X2Σ+ violet systems of the CN radical: accurate multireference configuration interaction calculations of the radiative transition probabilities. Journal of Chemical Physics, 1998, 89: 7334-7343
[19]  Silva ML, Dudeck M. Arrays of radiative transition probabilities for CO2-N2 plasmas. Journal of Quantitative Spectroscopy & Radiative Transfer, 2006, 102: 348-386
[20]  Bauschlicher CW, Langhoff SR, Taylor PR. Theoretical-study of the dissociation-energy and the red and violet band systems of CN. Astrophysical Journal, 1998, 332: 531-538
[21]  Lin X, Yu X L, Li F, et al. CO concentration and temperature measurements in a shock tube for martian mixtures by coupling OES and TDLAS. Applied Physics B: Lasers and Optics, 2013, 110: 401-409
[22]  Kurosawa K, Sugita S, Fujita K, et al. Rotational-temperature measurements of chemically reacting CN using band-tail spectra. Journal of Thermophysics and Heat Transfer, 2009, 23: 463-472

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133