Abstract
Planar laser induced fluorescence imaging (PLIF) is shown to be a quantitative method of measuring average values, rms fluctuations, and probability density functions of OH concentration in laboratory scale, H2-air diffusion flames. When compared with single-pulse laser saturated fluorescence (LSF) data, PLIF data show agreement (within a factor of two) for average and rms values in laminar, transitional, and turbulent flames. The unknown temperature dependence of the H2 quenching cross section introduces a factor of two uncertainty in PLIF measurements in rich flame zones. Extensions of PLIF to other molecules and other combustion systems are discussed.
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Aldén, M.; Edner, H.; Svanberg, S. 1982: Simultaneous, spatially resolved monitoring of C2 and OH in a C2H2/O2 flame using a diode array detector. Appl. Phys. B. 29, 93
Baronavski, A. P.; McDonald, J. R. 1977: Application of saturated spectroscopy to the measurement of C2, 3Π u concentrations in oxy-acetylene flames. Appl. Opt. 16, 1897
Cattolica, R. J.; Stepowski, D.; Puechberty, D.; Cottereau, M. 1984: Laser-induced fluorescence of the CH molecule in a low-pressure flame. J. Quant. Spectrosc. Radiat. Transfer 32, 363
Copeland, R. A.; Crosley, D. R. 1984: Rotational level dependence of electronic quenching of OH (A 2 Σ+, ν′ = 0). Chem. Phys. Lett. 107, 295
Correa, S. M.; Drake, M. C.; Pitz, R. W.; Shyy, W. 1985: Prediction and measurement of a nonequilibrium turbulent diffusion flame. Twentieth Symp. (Int.) Comb., The Combustion Inst., Pittsburgh, (to be publ.) Also G. E. CRD Report 84CRD171
Crosley, D. R. 1981: Collisional effects on laser-induced fluorescence flame measurements. Optical Eng. 20, 511
Drake, M. C.; Pitz, R. W.; Lapp, M. 1984: Laser measurements on nonpremixed hydrogen-air flames for assessment of turbulent combustion models. AIAA Paper 84-0544. AIAA J. (to be publ.)
Drake, M. C.; Pitz, R. W.; Lapp, M.; Fenimore, C. P.; Lucht, R. P.; Sweeney, D. W.; Laurendeau, N. M. 1985a: Measurements of superequilibrium hydroxyl concentrations in turbulent nonpremixed flames using saturated fluorescence. Twentieth Symp. (Int.) Comb., The Combustion Inst., Pittsburgh (to be publ.) Also G. E. CRD Report 84CRD195
Drake, M. C.; Pitz, R. W.; Correa, S. M.; Lapp, M. 1985b: Nitric oxide formation from thermal and fuel-bound nitrogen sources in a turbulent nonpremixed syngas flame. Twentieth Symp. (Int.) Comb., The Combustion Inst., Pittsburgh (to be publ.) Also G. E. CRD Report 84CRD194
Fairchild, P. W.; Smith, G. P.; Crosley, D. R. 1983: Collisional quenching of A 2 Σ+ OH at elevated temperature. J. Chem. Phys. 79, 1795
Kohse-Höinghaus, K.; Heidenreich, R.; Just, Th. 1985: Determination of absolute OH and CH concentrations in a low pressure flame by laser-induced saturated fluorescence. Twentieth Symp. Int. Combustion, The Combustion Inst., Pittsburgh (to be publ.)
Kychakoff, G.; Howe, R. D.; Hanson, R. K.; Drake, M. C.; Pitz, R. W.; Lapp, M.; Penney, C. M. 1984a: Visualization of turbulent flame fronts with planar laser-induced fluorescence. Science 224, 382
Kychakoff, G.; Howe, R. D.; Hanson, R. K. 1984b: Quantitative flow visualization technique for measurements in combustion gases. Appl. Opt. 23, 704
Kychakoff, G.; Knapp, K.; Howe, R. D.; Hanson, R. K. 1984c: Flow visualization in combustion gases using nitric oxide fluorescence. AIAA J. 22, 153
Kychakoff G.; Hanson, R. K.; and Howe, R. D. 1985: Simultaneous multiple-point measurements of OH in combustion gases using planar laser-induced fluorescence. Twentieth Symp. Int. Comb., The Combustion Institute, Pittsburgh (to be publ.)
Lucht, R. P.; Sweeney, D. W.; Laurendeau, N. M. 1980: Balanced cross-rate model for saturated molecular fluorescence in flames using a nonosecond pulse length laser. Appl. Opt. 19, 3295
Lucht, R. P.; Sweeney, D. W.; Laurendeau, N. M. 1983: Laser-saturated fluorescence measurements of OH concentration in flames. Comb. Flame 50, 189
Lucht, R. P.; Sweeney, D. W.; Laurendeau, N. M.; Drake, M. C.; Lapp, M.; Pitz, R. W. 1984: Single pulse, laser-saturated fluorescence measurements of OH in turbulent nonpremixed flames. Optics Lett. 9, 90
Lucht, R. P.; Sweeney, D. W.; Laurendeau, N. M. 1985: Laser-saturated fluorescence measurements of OH in atmospheric pressure CH4/O2/N2 flames under sooting and nonsooting conditions. Comb. Sci. Tech. 42, 259
Salmon, J. T.; Laurendeau, N. M. 1985a: Analysis of probe volume effects associated with laser-saturated fluorescence measurements. Appl. Opt. 24, 1313
Salmon, J. T.; Laurendeau, N. M. 1985b: Calibration of laser-saturated fluorescence measurements using Rayleigh scattering. Appl. Opt. 24, 65
Salmon, J. T.; Lucht, R. P.; Laurendeau, N. M.; Sweeney, D. W. 1985: Laser-saturated fluorescence measurements of NH in a premixed subatmospheric CH4/N2O/Ar flame. Twentieth Symp. Int. Comb., The Combust. Inst. Pittsburgh (to be publ.)
Schofield, K.; Steinberg, M. 1981: Quantitative atomic and molecular laser fluorescence in the study of detailed combustion processes. Optical Eng. 20, 501
Stepowski, D.; Cottereau, M. J. 1981: Study of the collisional lifetime of hydroxyl (A 2 Σ+, ν′ = 0) radicals in flames by timeresolved laser-induced fluorescence. Combust. Flame 40, 65
Verdieck, J. F.; Bonczyk, P. A. 1981: Laser-induced saturated fluorescence investigations of CH, CN and NO in Flames. Eighteenth Symp. Int. Comb., The Comb. Inst., Pittsburgh, p. 1559
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A version of this paper was presented at the ASME Winter Annual Meeting of 1984
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Drake, M.C., Pitz, R.W. Comparison of turbulent diffusion flame measurements of OH by planar fluorescence and saturated fluorescence. Experiments in Fluids 3, 283–292 (1985). https://doi.org/10.1007/BF00281776
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DOI: https://doi.org/10.1007/BF00281776