Search Results - "Sivashinsky, Gregory"
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An Elementary Model for a Self-Accelerating Outward Propagating Flame Subject to the Rayleigh–Taylor Instability: Transition to Detonation
Published in Fluids (Basel) (01-12-2020)“…Within the Boussinesq approximation, an elementary model for the deflagration-to-detonation transition triggered by self-acceleration of an expanding flame is…”
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2
Diffusive-thermal instabilities in premixed flames: Stepwise ignition-temperature kinetics
Published in Combustion and flame (01-05-2015)“…This study is motivated by the observation that in combustion of hydrogen–oxygen/air and ethylene–oxygen mixtures the global activation energy appears to be…”
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3
On the Transition from Deflagration to Detonation in Narrow Tubes
Published in Flow, turbulence and combustion (01-04-2010)“…The paper is an extension of our recent work on the deflagration-to-detonation transition in narrow channels over the transition in narrow circular tubes under…”
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4
The de Broglie soliton as a localized excitation of the action function
Published in Physica. D (15-02-2011)“…Guided by the formal analogy between the classical relativistic Hamilton–Jacobi equation and the dynamic equation for the premixed gas flame, a new class of…”
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5
An elementary model for autoignition of laminar jets
Published in Proceedings of the Royal Society. A, Mathematical, physical, and engineering sciences (08-07-2015)“…In this paper, we formulate and analyse an elementary model for autoignition of cylindrical laminar jets of fuel injected into an oxidizing ambient at rest…”
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6
Effect of the central gravitational field on self-accelerating outward propagating flames subjected to the Rayleigh-Taylor instability: Transition to detonation
Published in Combustion and flame (01-10-2023)“…Within the Boussinesq approximation an elementary model for the deflagration-to-detonation transition triggered by self-acceleration of an expanding flame in a…”
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Journal Article -
7
Flame propagation through a spatially periodic shear flow: Extinction vs. transition to detonation
Published in Combustion and flame (01-08-2020)“…The problem of flame propagation through a spatially periodic shear flow is revisited. When the flow intensity exceeds a certain critical level the corrugated…”
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8
Transition to detonation of an expanding spherical flame
Published in Combustion and flame (01-01-2017)“…With a freely expanding unwrinkled spherical flame as an example, it is shown that deflagration-to-detonation transition in unconfined gaseous systems is…”
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9
Parametric transition from deflagration to detonation: Runaway of fast flames
Published in Proceedings of the Combustion Institute (2017)“…The paper is concerned with identification of the key interactions controlling deflagration-to-detonation transition in confined and unconfined gaseous…”
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Journal Article -
10
A reduced model for a self-accelerating expanding flame subjected to the Darrieus-Landau and Rayleigh-Taylor instabilities: Transition to detonation
Published in Combustion and flame (01-11-2022)“…A weakly nonlinear model for a self-accelerating outward propagating corrugated flame is formulated and explored. The self-acceleration is sustained by the…”
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Journal Article -
11
Deflagration-to-detonation transition in an unconfined space: Expanding hydrogen-oxygen flames
Published in Proceedings of the Combustion Institute (2021)“…The problem of deflagration-to-detonation transition in an unconfined environment is revisited. With a freely expanding self-accelerating fractal-like…”
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12
Modeling of 2D self-drifting flame-balls in Hele-Shaw cells
Published in Combustion and flame (01-12-2023)“…The disintegration of near limit flames propagating through the gap of Hele-Shaw cells has recently become a subject of active research. In this paper, the…”
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13
Deflagration-to-detonation transition in an unconfined space
Published in Combustion and flame (01-09-2018)“…Whereas deflagration-to-detonation transition in confined systems is a matter of common knowledge, feasibility of the transition in unconfined space is still a…”
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Journal Article -
14
Parametric transition from deflagration to detonation revisited: Planar geometry
Published in Combustion and flame (01-01-2020)“…The paper is concerned with identification of the key mechanisms controlling deflagration-to-detonation transition in confined and unconfined gaseous systems…”
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Journal Article -
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Deflagration-to-detonation transition in narrow channels: hydraulic resistance versus flame folding
Published in Combustion theory and modelling (02-09-2016)“…This paper is concerned with the identification of the key interactions controlling the deflagration-to-detonation transition in narrow smooth-walled channels…”
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16
On dynamics of gasless combustion in slowly varying periodic media
Published in Combustion and flame (01-09-2024)“…In this paper we consider a classical model of gasless combustion in a one dimensional formulation under the assumption of ignition temperature kinetics. We…”
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17
Pressure diffusivity and low-velocity detonation
Published in Combustion and flame (01-03-2004)“…The mechanism controlling occurrence of the low-velocity denotation in obstacle-laden systems is discussed. A quasi-one-dimensional model where the impact of…”
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Journal Article -
18
Hydrodynamic aspects of end-gas autoignition
Published in Proceedings of the Combustion Institute (2013)“…Within the small-Mach-number approximation, employing an appropriate scale-separation procedure, a reduced zero-dimensional model for deflagrative combustion…”
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Journal Article -
19
On disintegration of near-limit cellular flames
Published in Physics letters. A (28-04-2003)“…A strongly non-linear geometrically-invariant model for the dynamics of near-limit cellular flame is proposed, where the flame evolution is governed by a…”
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Journal Article -
20
Modeling of Thermonuclear Fusion Flames: Parametric Transition to Detonation
Published in Combustion science and technology (18-11-2023)“…The paper is concerned with the identification of the key mechanisms controlling deflagration-to-detonation transition in a stellar medium. The issue of…”
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