燃烧流场温度二维重建多吸收谱线重建方法
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摘要
可调谐半导体激光层析技术可以实现对燃烧流场温度和组分浓度的二维分布测量。提出了一种基于多条吸收谱线组合的燃烧场温度二维重建方法,该方法利用每条吸收谱线对温度的敏感度不同,采取优化组合的方式得到每组吸收谱线对最佳的重建温度区域。文中使用四条H2O吸收谱线,模拟了温度在300～1 500 K范围时高斯分布和随机分布温度二维重建,比较了采用双线法和多条吸收谱线组合方法的温度重建结果。结果表明:采用吸收谱线组合方法和双线法的温度重建误差分别为0.039 6和0.095 2,吸收谱线组合方法可以有效提高重建结果质量。在实际工程应用中,当可以提前预估流场温度重建范围的情况,采用文中提出的多条吸收谱线组合方法可以二维重建结果质量。
2 D distribution measurement on temperature and concentration of combustion flow field can be obtained by tunable diode laser absorption tomography technique. A new method using multiple absorption lines to reconstruct 2 D temperature distribution was developed. In the method, different lines were combined based on the property of temperature sensitivity. And the area interested were reconstructed by the line pairs which were optimal for the temperature. In this paper, four H2 O lines were selected to reconstruct the temperature distribution using Gauss and random models in a range of 300-1 500 K. The simulation results show that the new method improves the reconstruction quality with reconstructed error of 0.039 6 comparing with two-line thermometry of 0.095 2. In engineering application, the multiple absorption lines combination optimization method can effectively improve the reconstruction quality when the temperature range of the area of interest can be predicted.
2 D distribution measurement on temperature and concentration of combustion flow field can be obtained by tunable diode laser absorption tomography technique. A new method using multiple absorption lines to reconstruct 2 D temperature distribution was developed. In the method, different lines were combined based on the property of temperature sensitivity. And the area interested were reconstructed by the line pairs which were optimal for the temperature. In this paper, four H2 O lines were selected to reconstruct the temperature distribution using Gauss and random models in a range of 300-1 500 K. The simulation results show that the new method improves the reconstruction quality with reconstructed error of 0.039 6 comparing with two-line thermometry of 0.095 2. In engineering application, the multiple absorption lines combination optimization method can effectively improve the reconstruction quality when the temperature range of the area of interest can be predicted.
引文
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[22]Song J,Hong Y,Wang G,et al.Algebraic tomographi reconstruction of two-dimensional gas temperature based on tunable diode laser absorption spectroscopy[J].Applied Physics B,2013,112(4):529-537.
[2]Goldenstein C S,Spearrin R M,Jeffries J B,et al.Infrared laser-absorption sensing for combustion gases[J].Progres in Energy and Combustion Science,2016,60:132-176.
[3]Bolshov M A,Kuritsyn Y U A,Romanovskii Y U VTunable diode laser spectroscopy as a technique fo combustion diagnostics[J].Spectrochimica Aata Part B2015,106:45-66.
[4]Busa K M,Rice B E,Fulton J A,et al.Scramje combustion efficiency measurement via tomographic absorption spectroscopy and particle image velocimetry[J]AIAA Journal,2016,53(4):1-9.
[5]Bryner E,Busa K,Mcdaniel J C,et al.Spatially resolved temperature and water vapor concentration distributions in flat flame burner by tunable diode laser absorption tomography[C]//49th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospac Exposition,2011:1291.
[6]Liu C,Xu L,Chen J,et al.Development of a fan-beam TDLAS-based tomographic sensor for rapid imaging o temperature and gas concentration[J].Optics Express,201523(17):22494-22511.
[7]Li Ning,Weng Chunsheng.Modified adaptive algebraic iterative algorithm for deflection tomography and it application to density flow field[J].Chinese Optics Letters2011,9(6):061201
[8]Ma L,Cai W W,Caswell A W,et al.Tomographic imaging in practical combustion devices based on hyperspectra absorption spectroscopy[J].Optics Express,2009,17(10)8602-8613.
[9]Ma L,Li X,Sanders S T,et al.50-kHz-rate 2D imaging of temperature and H2O concentration at the exhaust plane of a J85 engine using hyperspectral tomography[J].Optics Express,2013,21(1):1152-1162.
[10]Cai W,Ma L.Hyperspectral tomography based on proper orthogonal decomposition as motivated by imaging diagnostics of unsteady reactive flows[J].Applied Optics,2010,49(4):601-610.
[11]Gordon R,Bender R,Herman G T.Algebraic reconstruction techniques for 3 dimensional electron microscopy and x-ray photograph[J].Journal of Theoretical Biology,1970,29(3):471-481.
[12]Terzija N,Davidson J L,Garcia-Stewart C A,et al.Image optimization for chemical species tomography with an irregular and sparse beam array[J].Measurement Science and Technology,2008,19(9):094007.
[13]Daun K J.Infrared species limited data tomography through Tikhonov reconstruction[J].Journal of Quantitative Spectroscopy&Radiative Transfer,2010,111(1):105-115.
[14]Twynstra M G,Daun K J.Laser-absorption tomography beam arrangement optimization using resolution matrices[J].Applied Optics,2012,51(29):7059-7068.
[15]Yu T,Tian B,Cai W.Development of a beam optimization method for absorption-based tomography[J].Optics Express,2017,25(6):5982-5999.
[16]Xu L J,Liu C,Jing W Y,et al.Tunable diode laser absorption spectroscopy-based tomography system for on-line monitoring of two-dimensional distributions of temperature and H2O mole fraction[J].Review of Scientific Instruments2016,87(1):013101.
[17]Xia H,Kan R,Xu Z,et al.Two-step tomographi reconstructions of temperature and species concentration in flame based on laser absorption measurements with a rotation platform[J].Optics and Lasers in Engineering,2017,9010-18.
[18]Wang F,Wu Q,Huang Q,et al.Simultaneous measuremen of 2-dimensional H2O concentration and temperatur distribution in premixed methane air flame using TDLAS-based tomography technology[J].Optics Communications2015,346:53-63.
[19]Gordon I E,Rothman L S,Hill C,et al.The HITRAN2016molecular spectroscopic database[J].Journal of Quantitativ Spectroscopy&Radiative Transfer,2017,203:3-69.
[20]Zhou X,Liu X,Jeffries J B,et al.Selection of NIR H2Oabsorption transitions for in-cylinder measurement o temperature in IC engines[J].Measurement Science and Technology,2005,16(2):2437-2445.
[21]Liu X,Jefferies J B,Hanson R K,et al.Development of a tunable diode laser sensor for measurements of gas turbin exhaust temperature[J].Applied Physics B,2006,82(3)469-478.
[22]Song J,Hong Y,Wang G,et al.Algebraic tomographi reconstruction of two-dimensional gas temperature based on tunable diode laser absorption spectroscopy[J].Applied Physics B,2013,112(4):529-537.