Journal ArticleDOI
The structure of turbulent nonpremixed flames revealed by Raman-Rayleigh-LIF measurements
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TLDR
In this paper, a review of recent advances in understanding of the structure of turbulent non-premixed flames due to extensive data acquired from single-point and planar imaging experiments using the Raman, Rayleigh, and LIF diagnostic methods is presented.About:
This article is published in Progress in Energy and Combustion Science.The article was published on 1996-01-01. It has received 283 citations till now. The article focuses on the topics: Diffusion flame & Flame structure.read more
Citations
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Effects of turbulence on species mass fractions in methane/air jet flames
TL;DR: In this article, the authors used the combination of Raman scattering and laser-induced fluorescence to obtain simultaneous measurements of CO, OH, H2, and NO along with the major species, temperature, and mixture fraction in a series of six piloted methane/air jet flames.
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Structure of turbulent non-premixed jet flames in a diluted hot coflow
TL;DR: In this article, an experimental burner is used to simulate the heat and exhaust gas recirculation applied to a simple jet in a hot coflow, and the results show substantial variation in the flame structure and appearance with the decrease of the oxygen level.
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Simultaneous laser raman-rayleigh-lif measurements and numerical modeling results of a lifted turbulent H2/N2 jet flame in a vitiated coflow
TL;DR: In this paper, an experiment and numerical investigation of a lifted turbulent H2/N2 jet flame in a coflow of hot, vitiated gases is presented, where two combustion models (PDF: joint scalar Probability Density Function and EDC: Eddy Dissipation Concept) are used in conjunction with various turbulence models to predict the lift-off height.
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Paradigms in turbulent combustion research
TL;DR: The development of the basic conceptual viewpoints, or paradigms, for turbulent combustion in gases over the last 50 years is reviewed in this article, where significant progress has been made in the prediction of pollutant species and extinction/reignition phenomena in non-premixed flames.
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Detailed characterization of the dynamics of thermoacoustic pulsations in a lean premixed swirl flame
TL;DR: In this paper, a spray configuration for premixed gas turbine flames was operated with CH4 and air at atmospheric pressure, and a flame with P = 25 ǫkW thermal power and an equivalence ratio of Φ = 0.7 was chosen as a target flame in order to analyze the dynamics and the feedback mechanism of the periodic instability in detail.
References
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PDF methods for turbulent reactive flows
TL;DR: In this article, the authors proposed a joint probability density function (pdf) of the three components of velocity and of the composition variables (species mass fractions and enthalpy) to calculate the properties of turbulent reactive flow fields.
Book
Laser Diagnostics for Combustion Temperature and Species
TL;DR: A survey of laser diagnostics can be found in this paper, where the authors present a survey of the field of laser diagnostic tools and their application in various fields, including: 1. Background Physics 3. Experimental Considerations 4. Application Considerations 5. Spontaneous Raman and Rayleigh Scattering 6. Coherent Anti-Stokes Raman Spectroscopy (CARS) 7. Laser-Induced Fluorescence (LIF) 8.
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Lagrangian PDF Methods for Turbulent Flows
TL;DR: In this article, the authors propose a method for calculating the statistics of inhomogeneous turbulent flows of practical importance, and are particularly attractive if chemical reactions are involved, where the information contained at this level of closure is considerably more than that provided by moment closures.
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Turbulent combustion modelling
TL;DR: A review of the current state of the art in turbulent combustion modelling can be found in this article, where the authors present physical and experimental knowledge of the structure of turbulent flames in order to help the further discussions of models on a physical basis.