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Incorporating unsteady flow-effects in flamelet-generated manifolds
Combustion and Flame, 2008Detailed simulations are performed for a series of steady and unsteady nonpremixed flames. A specific type of unsteady flamelet simulations are considered, i.e., flamelets subjected to (temporally) varying strain-rates. It is observed that the unsteady flame trajectories move closely along a 2D manifold describing the set of steady diffusion flames in ...
Delhaye, S. +3 more
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Combustion Science and Technology, 2022
A recently developed spray Flamelet Generated Manifolds (SFGM) approach has been extended to include turbulence–chemistry interactions for studies of turbulent spray flames based on Eulerian–Lagrangian multiphase Large Eddy Simulation (LES). The Eulerian–
Ran Yi, Xu Zhang, C. P. Chen
semanticscholar +1 more source
A recently developed spray Flamelet Generated Manifolds (SFGM) approach has been extended to include turbulence–chemistry interactions for studies of turbulent spray flames based on Eulerian–Lagrangian multiphase Large Eddy Simulation (LES). The Eulerian–
Ran Yi, Xu Zhang, C. P. Chen
semanticscholar +1 more source
Modeling CO With Flamelet-Generated Manifolds: Part 1—Flamelet Configuration
Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2012In laminar flamelet modeling, a laminar flame in a simple 0D or 1D configuration is calculated a-priori and parameterized by a few scalars such as mixture fraction and reaction-progress or strain-rate. Transport equations, or algebraic expressions, for these parameters are then solved in 3D CFD simulations, avoiding computationally expensive in-situ ...
Graham Goldin +5 more
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Modelling of Premixed Laminar Flames using Flamelet-Generated Manifolds
Combustion Science and Technology, 2000In order to reduce the computational cost of flame simulations, several methods have been developed during the last decades, which simplify the description of the reaction kinetics. Most of these methods are based on partial-equilibrium and steady-state assumptions, assuming that most chemical processes have a much smaller time scale than the flow time
Oijen, van, J.A., Goey, de, L.P.H.
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Multidimensional flamelet-generated manifolds for partially premixed combustion
Combustion and Flame, 2010Flamelet-generated manifolds have been restricted so far to premixed or diffusion flame archetypes, even though the resulting tables have been applied to nonpremixed and partially premixed flame simulations. By using a projection of the full set of mass conservation species balance equations into a restricted subset of the composition space, unsteady ...
Nguyen, Phuc-Danh +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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Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, 2022
Hydrogen has been identified as one of the key elements of the decarbonization initiatives. The level of maturity with different original equipment manufacturers (OEMs) varies significantly for a 100% H2 gas turbine combustor.
Ishan Verma +3 more
semanticscholar +1 more source
Hydrogen has been identified as one of the key elements of the decarbonization initiatives. The level of maturity with different original equipment manufacturers (OEMs) varies significantly for a 100% H2 gas turbine combustor.
Ishan Verma +3 more
semanticscholar +1 more source
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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Development of a Multiphase Flamelet Generated Manifold for Spray Combustion Simulations
Journal of Engineering for Gas Turbines and Power, 2021Abstract In this study, a model flame of quasi-one-dimensional (1D) counterflow spray flame has been developed. The two-dimensional (2D) multiphase convection-diffusion-reaction equations have been simplified to one dimension using similarity reduction under the Eulerian framework.
Xu Zhang, Ran Yi, C. P. Chen
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Volume 3B: Combustion, Fuels, and Emissions, 2021
Carbon monoxide (CO) has been identified as one of the regulated pollutants and gas turbine manufacturers target to reduce the CO emission from their gas turbine engines.
S. Patwardhan +5 more
semanticscholar +1 more source
Carbon monoxide (CO) has been identified as one of the regulated pollutants and gas turbine manufacturers target to reduce the CO emission from their gas turbine engines.
S. Patwardhan +5 more
semanticscholar +1 more source