One-dimensional raman scattering for determination of multipoint joint scalar probability density functions in turbulent diffusion flames

Ebersohl, N.; Klos, Th.; Suntz, Rainer; Bockhorn, Henning

doi:10.1016/s0082-0784(98)80499-2

Cited by 9 publications

(3 citation statements)

References 12 publications

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“…The method of choice for the determination of local mixture fraction in flames is laser Raman scattering, which has often been employed with single-shot resolution in point or line measurements [33][34][35][36][37][38][39][40]. With the simultaneous measurement of all major species concentrations, the local mixing state can be determined.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Turbulence-Chemistry Interactions in Perfectly and Partially Premixed Confined Swirl Flames

Dem

Stöhr

Arndt

et al. 2014

Zeitschrift Für Physikalische Chemie

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A gas turbine model combustor (Turbomeca Burner) for premixed methane/air flames has been operated at atmospheric pressure in two different modes of premixing. In the partially premixed mode, fuel was injected into the air flow within the swirl generator shortly upstream of the combustion chamber while in the perfectly premixed mode fuel and air were mixed far upstream. The main objective of this work is the study of the influence of the mode of premixing on the combustion behavior. Stereoscopic particle image velocimetry has been applied for the measurement of the flow field, OH chemiluminescence imaging for the visualization of the flame shapes and single-shot laser Raman scattering for the determination of the joint probability density functions of major species concentrations, mixture fraction and temperature. The mixing and reaction progress and effects of turbulence-chemistry interactions are characterized by scatterplots showing the correlations between different quantities. To isolate effects of mixing from combustion instabilities that were frequently observed in this combustor, operating conditions without thermo-acoustic oscillations or coherent flow structures were chosen. While the mode of premixing had no major influence on the general flame behavior characteristic differences were observed with respect to flame anchoring, the flow field in the inner recirculation zone and the CO concentration level. The results further extend the data base of previous experimental and numerical investigations with this burner.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Turbulence-Chemistry Interactions in Perfectly and Partially Premixed Confined Swirl Flames

Dem

Stöhr

Arndt

et al. 2014

Zeitschrift Für Physikalische Chemie

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“…Concerning velocities, LDV could give length scales through the simultaneous measurement with two separated LDV systems [47], but easier to align, easier to combine with other techniques and with the advantages of real-field data are image-correlation methods [140], such as PIV [114] and GIV [55]. For the measurement of scalar correlations, CARS on a line [69] as well as Raman/Rayleigh methods and LIF on a line have been implemented [16,37,[94][95][96]117]. Improved line Raman systems with high spatial resolution and high accuracy are under development now in some places [6].…”

Section: New Developments and Multi-technique Experimentsmentioning

confidence: 99%

Laser diagnostics for studies of turbulent combustion

Hassel

Linow

2000

Meas. Sci. Technol.

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The demands on the quality of velocity, concentration and temperature data from turbulent combustion systems for comparison with numerical predictions are rising with the increasing performance of models for the numerical description of these effects. These demands lead to a high degree of maturity in laser-based methods for concentration, temperature and species information. Laser-based methods are able to give the required information without severely disturbing the observed effects and with the needed accuracy and temporal and spatial resolution. This article reviews the state of the art and recent developments of laser-Doppler velocimetry, Rayleigh spectroscopy, spontaneous Raman spectroscopy, coherent anti-Stokes Raman spectroscopy and laser-induced fluorescence. Emphasis is placed not only on aspects of these measurement techniques connected with spatially and temporally resolved quantitative measurements in turbulent combustion, but also on the interaction of the requirements of these methods on the object with the requirements of the characterized object itself and with demands from methods of numerical prediction on the generated data. New developments and requirements on the reviewed methods originating from new trends in combustion modelling are included.

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“…In combustion research, non-invasive laser-based techniques such as planar laser-induced fluorescence (PLIF) and Raman spectroscopy have been used for decades to obtain spatially and temporally resolved gas-phase species distributions. 25–27 In the last 15 years, such techniques have been applied in the field of heterogeneous catalysis as well. Mantzaras et al conducted several pioneering studies with PLIF and Raman spectroscopy to investigate the catalyst-assisted combustion in microchannels.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of NO oxidation on Pt/Al₂O₃- and NO_xstorage on Pt/BaO/Al₂O₃-catalysts

Wan

Keller

Lott

et al. 2022

Catal. Sci. Technol.

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One-dimensional raman scattering for determination of multipoint joint scalar probability density functions in turbulent diffusion flames

Cited by 9 publications

References 12 publications

Experimental Study of Turbulence-Chemistry Interactions in Perfectly and Partially Premixed Confined Swirl Flames

Experimental Study of Turbulence-Chemistry Interactions in Perfectly and Partially Premixed Confined Swirl Flames

Laser diagnostics for studies of turbulent combustion

Experimental and numerical investigation of NO oxidation on Pt/Al₂O₃- and NO_xstorage on Pt/BaO/Al₂O₃-catalysts

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One-dimensional raman scattering for determination of multipoint joint scalar probability density functions in turbulent diffusion flames

Cited by 9 publications

References 12 publications

Experimental Study of Turbulence-Chemistry Interactions in Perfectly and Partially Premixed Confined Swirl Flames

Experimental Study of Turbulence-Chemistry Interactions in Perfectly and Partially Premixed Confined Swirl Flames

Laser diagnostics for studies of turbulent combustion

Experimental and numerical investigation of NO oxidation on Pt/Al2O3- and NOxstorage on Pt/BaO/Al2O3-catalysts

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Experimental and numerical investigation of NO oxidation on Pt/Al₂O₃- and NO_xstorage on Pt/BaO/Al₂O₃-catalysts