Lin Xin, Chen Lianzhong, Dong Yonghui, Ou Dongbin, Li Fei, Yu Xilong. Experimental study on leak detection of cooling water in arc heater based on emission spectroscopy[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(4): 14-19. DOI: 10.11729/syltlx20150155
Citation: Lin Xin, Chen Lianzhong, Dong Yonghui, Ou Dongbin, Li Fei, Yu Xilong. Experimental study on leak detection of cooling water in arc heater based on emission spectroscopy[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(4): 14-19. DOI: 10.11729/syltlx20150155

Experimental study on leak detection of cooling water in arc heater based on emission spectroscopy

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  • Received Date: December 20, 2015
  • Revised Date: January 14, 2016
  • High-enthalpy arc heaters play an important role in the development of thermal protection materials and heat shield structures for entry vehicles because they are capable of producing longtime and representative flow environments. Owing to the large heat flux loading on the electrode, the erosion of the electrode is inevitable. Generally, high pressure water is used for cooling of the electrode. The arc heater may suffer serious damage caused by electrode leak, especially for hundreds or even thousands of seconds aerodynamic heating tests. Therefore, it is necessary to develop fast response diagnostic technique to monitor the operating status of the facility and determine the initial time of water leakage to avoid costly arc-heater failure. Because of the extreme conditions inside the arc-heater section, options for measurements of the test gases are limited, and optical spectroscopy-based measurements present a diagnostic opportunity. Optical Emission Spectroscopy (OES) is widely used for measuring gas parameters of high-temperature flow field because it is non-intrusive, high sensitive, and just constituted of simple instruments. In our studies, the 656.28 nm emission spectral line of the atomic hydrogen and the 777.19 nm emission spectral line of the atomic oxygen are utilized for routinely in situ monitoring the operating status and determining the initial time of water leakage at a high-enthalpy arc heater. According to the intensity ratio of the two emission spectral lines, the mass fluxes of the water leakage can be derived, which are 1.85~0.94g/s and 2.12~0.98g/s, corresponding to equilibrium temperatures equal to 6000~8000K and 5500~7500K under two different test conditions, respectively. The current test results of this study illustrate the feasibility and potential of the OES technology in high-enthalpy arc heater safety diagnosis, especially on the water leakage diagnosis.
  • [1]
    Grinstead J H, Porter B J, Carballo J E. Flow property measurement using laser-induced fluorescence in the NASA ames interaction heating facility[R]. AIAA-2011-1091, 2011.
    [2]
    plinter S C, Bey K S, Gragg J G, et al. Comparative measurements of earth and Martian entry environments in the NASA Langley HYMETS facility[R]. AIAA-2011-1014, 2011.
    [3]
    Park C, Raiche G A, Driver D M, et al. Comparison of enthalpy determination methods for an arc-jet facility[J]. Journal of Thermophysics and Heat Transfer, 2006, 20(4): 672-679. DOI: 10.2514/1.15744
    [4]
    Kim S. Development of tunable diode laser absorption sensors for a large-scale arc-heated-plasma wind tunnel[D]. California: Stanford University, 2004.
    [5]
    Martin M N, Chang L S, Jeffries J B, et al. Monitoring temperature in high enthalpy arc-heated plasma flows using tunable diode laser absorption spectroscopy[R]. AIAA-2013-2761, 2013.
    [6]
    Winter P M, Prabhu D K. Radiation transport analysis of emission spectroscopic measurements in the plenum region of the NASA IHF arc jet facility[R]. AIAA-2014-2489, 2014.
    [7]
    Takayanagi H, Mizuno M, Fujii K, et al. Arc heated wind tunnel flow diagnostics using laser-induced fluorescence of atomic species[R]. AIAA-2009-1449, 2009.
    [8]
    Inman J A, Bathel B F, Johansen C T, et al. Nitric oxide PLIF measurements in the Hypersonic Materials Environmental Test System (HYMETS)[R]. AIAA-2011-1090, 2011.
    [9]
    Vancrayenes B, Fletcher D G. Emission spectroscopic survey of graphite ablation in the VKI plasmatron[R]. AIAA-2006-2907, 2006.
    [10]
    Yalin A P, Laux C O, Kruger C H, et al. Spatial profiles of N2+ concentration in an atmospheric pressure nitrogen glow discharge[J]. Plasma Sources Science and Technology, 2002, 11: 248-253. DOI: 10.1088/0963-0252/11/3/304
    [11]
    Lin X, Yu X L, Li F, et al. Measurements of nonequilibrium and equilibrium temperature behind a strong shock wave in simulated Martian atmosphere[J]. Acta Mechanica Sinica, 2012, 28(5): 1296-1302. DOI: 10.1007/s10409-012-0104-9
    [12]
    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[J]. Applied Physics B: Lasers and Optics, 2012, 110: 401-409. http://cn.bing.com/academic/profile?id=2061476840&encoded=0&v=paper_preview&mkt=zh-cn
    [13]
    Dikalyuk A S, Surzhikov S T, Kozlov P V, et al. Nonequilibrium spectral radiation behind the shock waves in Martian and Earth atmospheres[R]. AIAA-2013-2505, 2013.
    [14]
    Winter M W, Prabhu D K, Williams W W. Determination of temperature profiles in the plenum region of the NASA IHF arc jet facility from emission spectroscopic measurements[R]. AIAA-2013-3016, 2013.
    [15]
    Winter M W, Prabhu D K, Taunk J S, et al. Emission spectroscopic measurements in the plenum region of the NASA IHF arc jet facility[R]. AIAA-2010-4522, 2010.
    [16]
    Winter M W, Prabhu D K, Raiche G A, et al. Emission spectroscopic measurements with an optical probe in the NASA Ames IHF arc jet facility[R]. AIAA-2012-1016, 2012.
    [17]
    张志成. 高超声速气动热和热防护[M]. 北京: 国防工业出版社, 2003: 261-263.
    [18]
    Baum G M, Jorgensen L H. Charts for equilibrium flow properties of air in hypervelocity nozzles[R]. NASA TN D-1333, 1962.
    [19]
    Laux C O. Optical dignostics and radiative emission of air plasmas[D]. California: Stanford University, 1993.
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