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Applications in Energy and Combustion Science, 2023 In flames, turbulence can either limit or enhance combustion efficiency by means of strain and mixing. The interactions between turbulent motions and chemistry are crucial to the behaviour of combustion processes.
Arthur Péquin +4 more
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Shape Complexity in Turbulence [PDF]
, 1998 The shape complexity of irregular surfaces is quantified by a dimensionless area-volume measure. A joint distribution of shape complexity and size is found for level-set islands and lakes in two-dimensional slices of the scalar field of liquid-phase ...
Catrakis, Haris J., Dimotakis, Paul E.
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Turbulent burning velocity in combustion chamber of SI engine fueled with compressed biogas
Vietnam Journal of Mechanics, 2015 Turbulent burning velocity is the most important parameter in analyzing pre-mixed combustion simulation of spark ignition engines. It depends on the laminar burning velocity and turbulence intensity in the combustion chamber.
Bui Van Ga +2 more
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THE FIRST TURBULENT COMBUSTION [PDF]
Combustion Science and Technology, 2005 The first turbulent combustion arises in a hot big bang cosmological model Gibson (2004) where nonlinear exothermic turbulence permitted by quantum mechanics, general relativity, multidimensional superstring theory, and fluid mechanics cascades from Planck to strong force freeze out scales with gravity balancing turbulent inertial-vortex forces ...
openaire +2 more sources
On Lean Turbulent Combustion Modeling [PDF]
INCAS Bulletin, 2014 This paper investigates a lean methane-air flame with different chemical reaction mechanisms, for laminar and turbulent combustion, approached as one and bi-dimensional problem.
Constantin LEVENTIU, Sterian DANAILA
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Lagrangian Formulation of Turbulent Premixed Combustion [PDF]
Physical Review Letters, 2011 The Lagrangian point of view is adopted to study turbulent premixed combustion. The evolution of the volume fraction of combustion products is established by the Reynolds transport theorem. It emerges that the burned-mass fraction is led by the turbulent particle motion, by the flame front velocity, and by the mean curvature of the flame front.
Pagnini, Gianni, Bonomi, Ernesto
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MATEC Web of Conferences, 2018 Resistance is The article presents the results of the research of a charge swirl motion influence on working process, engine parameters and NOx emissions of a spark ignition premixed natural gas engine. The charge swirl motion was organized by tangential
Patsey Pavel, Galyshev Yuriy
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Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework
Energies, 2019 Within the framework of a Reynolds averaged numerical simulation (RANS) methodology for modeling turbulence, a comparative numerical study of turbulent lifted H2/N2 flames is presented.
Ali Cemal Benim, Björn Pfeiffelmann
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Burning Rate in Impinging Jet Flames
Journal of Combustion, 2011 A method for evaluating burning velocity in premixed turbulent flames stabilized in divergent mean flows is quantitatively validated using numerical approximations of measured axial profiles of the mean combustion progress variable, mean and conditioned ...
A. N. Lipatnikov
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Energies, 2022 Three-dimensional Direct Numerical Simulations (DNS) data has been utilised to analyse statistical behaviours of the scalar dissipation rate (SDR) and its transport for homogeneous methane-air mixture turbulent Moderate or Intense Low oxygen Dilution ...
Frederick W. Young +4 more
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