Results 11 to 20 of about 3,477,557 (293)
Turbulent Premixed Flame Kernel Growth During The Early Stages Using Direct Numerical Simulation [PDF]
, 2008 In this thesis Direct Numerical Simulation (DNS) is used to investigate the development of turbulent premixed flame kernels during the early stages of growth typical of the period following spark ignition.
Dunstan, T. D.
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Flow Characterisation of Flames in an Acoustically Excited Chamber [PDF]
, 2012 Flame-acoustic wave interactions have been studied widely in the combustion community; however the whole physicochemical mechanism is still not clear.
Chen, Li-Wei
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Autoignition flame dynamics in sequential combustors [PDF]
Combustion and Flame, 2018 Abstract This numerical study investigates the linear and non-linear flame dynamics in the second stage of a sequential combustor, with methane fuel injection into vitiated hot gas. It focuses on the heat release rate response of the sequential flame to entropy waves.
Oliver Schulz, Nicolas Noiray
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Nonlinear dynamics of upward propagating flames
Physical Review E, 2023 We study the influence of gravity on the dynamics of upward propagating premixed flames. We show that the role of gravity on the dispersion relation is small, but that the nonlinear effects are large. Using a Michelson Sivashinsky equation modified with a gravity term, it can be observed that the nonlinear dynamics of the crests is greatly influenced ...
Battikh, Mariam +4 more
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, 2022 Large Eddy Simulation (LES) with Conjugate Heat Transfer (CHT) is used to analyze the impact of H2-enrichment on the flame structure and combustion dynamics of a lean partially-premixed turbulent CH4/Air swirling flame.
Poinsot T. +5 more
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On the dynamics of flame edges in diffusion-flame/vortex interactions [PDF]
Combustion and Flame, 2007 We analyze the local flame extinction and reignition of a counterflow diffusion flame perturbed by a laminar vortex ring. Local flame extinction leads to the appearance of flame edges separating the burning and extinguished regions of the distorted mixing layer.
Hermanns Navarro, Miguel +2 more
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Quantitative Assessment of Flame Stability Through Image Processing and Spectral Analysis [PDF]
, 2015 This paper experimentally investigates two generalized methods, i.e., a simple universal index and oscillation frequency, for the quantitative assessment of flame stability at fossil-fuel-fired furnaces.
Zhou, Hao +4 more
core +1 more source
Energies, 2022 The relationship between the flow field and flame propagation is essential in determining the dynamics and effects of turbulent flow in an optical SI engine.
Yuji Ikeda
doaj +1 more source
Combustion Dynamics of Swirling Turbulent Flames [PDF]
, 2001 A generalized Large-Eddy Simulation (LES) methodology has been developed to simulate premixed and non-premixed gas-phase and two-phase combustion in complex flows such as those typically encountered in gas-turbine combustors. This formulation allows the study and analysis of the fundamental physics involved in such flows, i.e., vortex/flame interaction,
Suresh Menon +2 more
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Dynamics of premixed confined swirling flames
Comptes Rendus. Mécanique, 2009 Considerable effort is currently being extended to examine the fundamental mechanisms of combustion instabilities and develop methods allowing predictions of these phenomena. One central aspect of this problem is the dynamical response of the flame to incoming perturbations. This question is examined in the present article, which specifically considers
Palies, P. +4 more
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