Large Eddy Simulations of gaseous flames in gas turbine combustion chambers
TLDR
In this article, two types of LES in complex geometry combustors and of specific interest for aeronautical gas turbine burners are reviewed: (1) laboratory-scale combustors, without compressor or turbine, in which advanced measurements are possible and (2) combustion chambers of existing engines operated in realistic operating conditions.About:
This article is published in Progress in Energy and Combustion Science.The article was published on 2012-12-01 and is currently open access. It has received 396 citations till now. The article focuses on the topics: Combustion chamber & Combustor.read more
Citations
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Prediction and control of combustion instabilities in real engines
Thierry Poinsot,Thierry Poinsot +1 more
TL;DR: In this paper, the authors present recent progress in the field of thermoacoustic combustion instabilities in propulsion engines such as rockets or gas turbines, and show that LES is not sufficient and that theory, even in these complex systems, plays a major role to understand both experimental and LES results and to identify mitigation techniques.
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Dynamics of Swirling Flames
TL;DR: In this paper, a discussion of the swirl number, a parameter that plays a central role in the definition of the flow structure and its response to incoming disturbances, is presented, where the interaction between the swirler response and incoming acoustic perturbations generates a vorticity wave convected by the flow.
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Oxy-fuel combustion of pulverized fuels: Combustion fundamentals and modeling
Chungen Yin,Jinyue Yan +1 more
TL;DR: In this article, the authors present a state-of-the-art review and an in-depth discussion of pulverized fuels (PF) oxy-fuel combustion fundamentals and their modeling, which underpin the development of this promising technology.
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Large-eddy simulation: Past, present and the future
TL;DR: Large-eddy simulation (LES) was originally proposed for simulating atmospheric flows in the 1960s and has become one of the most promising and successful methodology for simulation of turbulent flows with the improvement of computing power as mentioned in this paper.
References
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Proceedings ArticleDOI
Modeling Transfer Matrices of Premixed Flames and Comparison With Experimental Results
TL;DR: In this article, a combined analytical/experimental investigation of the thermoacoustic properties of a gas turbine burner with a premixed, turbulent, swirl-stabilized flame is presented.
Modeling combustion chemistry in large eddy simulation of turbulent flames
TL;DR: A review of commonly-used approaches to address fluid/chemistry interactions at a reduced computational cost is presented in this paper, where the problem of coupling chemistry with large eddy simulations of turbulent combustion is considered.
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The Soret effect in naturally propagating, premixed, lean, hydrogen–air flames
TL;DR: In this paper, a full, multicomponent transport model with cross-diffusion was proposed to predict faster, significantly faster flames with much faster extinction and division of cellular structures.
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Invariance of turbulent closure models
TL;DR: In this article, the invariance of second moment turbulent closure under a change of frame is examined and it is shown that the Reynolds stresses and the higher turbulence correlations based on an ensemble mean are frame-indifferent while the Reynolds stress transport equations are frame dependent.
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LES-CMC simulations of a turbulent bluff-body flame
TL;DR: In this article, the large Eddy simulations (LES)-conditional moment closure (CMC) method with detailed chemistry is applied to a bluff-body stabilized flame and the results show good agreement with the experiments.