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Formulation and assessment of flamelet-generated manifolds for reacting interfaces
Combustion and Flame, 2016The coupling of heat and mass transfer at the surface of solid or liquid fuels is important when modeling near-surface gasification and combustion processes. Modeling the reacting boundary layer with the use of finite-rate chemistry allows for a highly accurate description of the coupling between the flame and fuel surface, but is not tractable when ...
Brian T. Bojko, Paul E. DesJardin
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Combustion and Flame, 2011
Abstract Canonical flame problems have been widely used in the combustion literature to tabulate detailed chemistry. Prior to three-dimensional flame simulations, reference laminar premixed flames are usually solved in physical-space, and, diffusion flames in either physical, or, mixture fraction space. Composition-space solutions would be convenient
Lodier, G. +3 more
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Abstract Canonical flame problems have been widely used in the combustion literature to tabulate detailed chemistry. Prior to three-dimensional flame simulations, reference laminar premixed flames are usually solved in physical-space, and, diffusion flames in either physical, or, mixture fraction space. Composition-space solutions would be convenient
Lodier, G. +3 more
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Modeling of complex premixed burner systems by using flamelet-generated manifolds
Combustion and Flame, 2001The numerical modeling of realistic burner systems puts a very high demand on computational recources.The computational cost of combustion simulations can be reduced by reduction techniques which simplify the chemical kinetics. In this paper the recently introduced Flamelet-Generated Manifold method for premixed combustion systems is applied to laminar
van Oijen, J.A. +2 more
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The Application of Flamelet-Generated Manifold in the Modeling of Stratified Premixed Cooled Flames
Volume 4B: Combustion, Fuels and Emissions, 2014CFD predictions of flame position, stability and emissions are essential in order to obtain optimized combustor designs in a cost efficient way. However, the numerical modeling of practical combustion systems is a very challenging task. As a matter of fact, the use of detailed reaction mechanisms is necessary for such reliable predictions ...
Donini, A. +3 more
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ASME 2013 Gas Turbine India Conference, 2013
Laminar Flamelet Model (LFM) [1–2] represents the turbulent flame brush using statistical averaging of laminar flamelets whose structure is not affected by turbulence. The chemical non-equilibrium effects considered in this model are due to local turbulent straining only.
Pravin Nakod +3 more
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Laminar Flamelet Model (LFM) [1–2] represents the turbulent flame brush using statistical averaging of laminar flamelets whose structure is not affected by turbulence. The chemical non-equilibrium effects considered in this model are due to local turbulent straining only.
Pravin Nakod +3 more
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Modeling CO With Flamelet-Generated Manifolds: Part 2 — Application
Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2012Conventional Flamelet Generated Manifold (FGM) closure of the mean progress variable reaction rate assumes PDF shapes to account for turbulent fluctuations. The FGM parameters are commonly assumed to be statistically independent, and the marginal PDFs invariably require second moments, which are difficult to model accurately and have limited ...
Graham Goldin +5 more
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Modeling of Turbulent Premixed Flames Using Flamelet-Generated Manifolds
2017Efficient and reliable numerical models have become important tools in the design and optimization process of modern combustion equipment. For accurate predictions of flame stability and pollutant emissions, the use of detailed comprehensive chemical models is required. This accuracy, unfortunately, comes at a very high computational cost. The flamelet-
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Extending the Flamelet Generated Manifold for Soot and NOx Modeling in Diesel Spray Combustion
The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines, 2017Diesel spray combustion is prone to lead to high soot and nitrogen oxides (NOx) emissions. Regulations impose lowering the emission limits drastically because of the severe impact on health and environment. Apart from health and environmental issues, soot production also results in an efficiency loss due to the heat loss through radiation and late ...
Akargün, H.Y. +3 more
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Modeling diesel engine combustion using pressure dependent Flamelet Generated Manifolds
Proceedings of the Combustion Institute, 2011Flamelet Generated Manifolds (FGMs) are constructed and applied to simulations of a conventional compression ignition engine cycle. To study the influence of pressure and temperature variations on the ignition process after the compression stroke, FGMs with several pressure levels are created.
Bekdemir, C. +2 more
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SAE Technical Paper Series, 2010
<div class="section abstract"><div class="htmlview paragraph">A study on the modeling of fuel sprays in diesel engines will be presented. First, modeling of non-reacting diesel spray formation is studied in Fluent and Star-CD. The main objective however is to model combustion of the spray using a generic approach.
Bekdemir, C. +4 more
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<div class="section abstract"><div class="htmlview paragraph">A study on the modeling of fuel sprays in diesel engines will be presented. First, modeling of non-reacting diesel spray formation is studied in Fluent and Star-CD. The main objective however is to model combustion of the spray using a generic approach.
Bekdemir, C. +4 more
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