Three-dimensional flame measurements using fiber-based endoscopes

Abstract This work describes instantaneous three-dimensional (3D) flame measurements using fiber-based endoscopes (FBEs). The measurement technique used FBEs to gather projections of the target flame from various orientations simultaneously, based on which a 3D tomographic reconstruction was then performed to obtain 3D flame measurements. Both experimental and numerical results are reported to illustrate the capabilities of the measurement technique, and study its limitations. These results demonstrate the feasibility of obtaining instantaneous 3D measurements with sub-mm spatial resolution at kHz temporal resolution using FBEs, and also the practical advantages of FBEs for overcoming optical access and reducing equipment cost.

[1]  Xuesong Li,et al.  Minimizing binary functions with simulated annealing algorithm with applications to binary tomography , 2012, Comput. Phys. Commun..

[2]  J. Driscoll.  Turbulent premixed combustion: Flamelet structure and its effect on turbulent burning velocities , 2008 .

[3]  Fulvio Scarano,et al.  Tomographic PIV: principles and practice , 2012 .

[4]  Lin Ma,et al.  Comparison of approaches based on optimization and algebraic iteration for binary tomography , 2010, Comput. Phys. Commun..

[5]  Lin Ma,et al.  Volumetric imaging of turbulent reactive flows at kHz based on computed tomography. , 2014, Optics express.

[6]  Weiwei Cai,et al.  Validation of temperature imaging by H2O absorption spectroscopy using hyperspectral tomography in controlled experiments. , 2011, Applied optics.

[7]  Luca Maddalena,et al.  51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 , 2013 .

[8]  C. Markides,et al.  MEASUREMENTS AND SIMULATIONS OF MIXING AND AUTOIGNITION OF AN N-HEPTANE PLUME IN A TURBULENT FLOW OF HEATED AIR , 2007 .

[9]  Marcus Aldén,et al.  Time resolved, 3D imaging (4D) of two phase flow at a repetition rate of 1 kHz. , 2011, Optics express.

[10]  Yong Yan,et al.  Optical Fiber Imaging Based Tomographic Reconstruction of Burner Flames , 2012, IEEE Transactions on Instrumentation and Measurement.

[11]  Lin Ma,et al.  Applications of critical temperature in minimizing functions of continuous variables with simulated annealing algorithm , 2010, Comput. Phys. Commun..

[12]  Johannes Janicka,et al.  LES OF THE SYDNEY SWIRL FLAME SERIES: AN INITIAL INVESTIGATION OF THE FLUID DYNAMICS , 2007 .

[13]  Jerry Seitzman,et al.  CH∗ chemiluminescence modeling for combustion diagnostics , 2009 .

[14]  Lin Ma,et al.  Tomographic imaging of temperature and chemical species based on hyperspectral absorption spectroscopy. , 2009, Optics express.

[15]  Weiwei Cai,et al.  Numerical investigation of hyperspectral tomography for simultaneous temperature and concentration imaging. , 2008, Applied optics.

[16]  Yong Yan,et al.  Recent Advances in Flame Tomography , 2012 .

[17]  Y. Hardalupas,et al.  Local measurements of the time-dependent heat release rate and equivalence ratio using chemiluminescent emission from a flame , 2004 .

[18]  C. Sheppard,et al.  Measurements of the Three-Dimensional Structure of Flames at Low Turbulence , 2012 .

[19]  Xuesong Li,et al.  Practical aspects of implementing three-dimensional tomography inversion for volumetric flame imaging. , 2013, Applied optics.

[20]  Andreas Kempf,et al.  Computed Tomography of Chemiluminescence (CTC): High resolution and instantaneous 3-D measurements of a Matrix burner , 2011 .

[21]  Krikor B. Ozanyan,et al.  High-speed chemical species tomography in a multi-cylinder automotive engine , 2010 .

[22]  N. Denisova,et al.  Emission tomography in flame diagnostics , 2013 .

[23]  A. Kempf,et al.  Computed Tomography of Chemiluminescence (CTC): Instantaneous 3D measurements and Phantom studies of a turbulent opposed jet flame , 2011 .

[24]  Fei Li,et al.  Numerical and experimental validation of a three-dimensional combustion diagnostic based on tomographic chemiluminescence. , 2013, Optics express.

[25]  Charles A. DiMarzio.  Optics for Engineers , 2011 .

[26]  Volker Sick,et al.  High speed imaging in fundamental and applied combustion research , 2013 .

[27]  Clemens F. Kaminski,et al.  Quantitative three-dimensional imaging of soot volume fraction in turbulent non-premixed flames , 2002 .

[28]  Klaus D. Hinsch.  REVIEW ARTICLE: Holographic particle image velocimetry , 2002 .

[29]  Lin Ma,et al.  Investigation of temperature parallel simulated annealing for optimizing continuous functions with application to hyperspectral tomography , 2011, Appl. Math. Comput..

[30]  Sukesh Roy,et al.  50-kHz-rate 2D imaging of temperature and H2O concentration at the exhaust plane of a J85 engine using hyperspectral tomography. , 2013, Optics express.

[31]  Jay Jeffries,et al.  Wavelength-agile diode-laser sensing strategies for monitoring gas properties in optically harsh flows: application in cesium-seeded pulse detonation. , 2002, Optics express.

[32]  Henning Bockhorn,et al.  Tomographic reconstruction of the OH*-chemiluminescence distribution in premixed and diffusion flames , 2010 .