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**Harvard**

Bychkov, V., Akkerman, V., Fru, G., Petchenko, A. och Eriksson, L. (2007) *Flame acceleration in the early stages of burning in tubes*.

** BibTeX **

@article{

Bychkov2007,

author={Bychkov, V. and Akkerman, V. and Fru, G. and Petchenko, A. and Eriksson, Lars-Erik},

title={Flame acceleration in the early stages of burning in tubes},

journal={Combustion and Flame},

issn={0010-2180},

volume={150},

issue={4},

pages={263-276},

abstract={Acceleration of premixed laminar flames in the early stages of burning in long tubes is considered. The acceleration mechanism was suggested earlier by Clanet and Searby [Combust. Flame 105 (1996) 225]. Acceleration happens due to the initial ignition geometry at the tube axis when a flame develops to a finger-shaped front, with surface area growing exponentially in time. Flame surface area grows quite fast but only for a short time. The analytical theory of flame acceleration is developed, which determines the growth rate, the total acceleration time, and the maximal increase of the flame surface area. Direct numerical simulations of the process are performed for the complete set of combustion equations. The simulations results and the theory are in good agreement with the previous experiments. The numerical simulations also demonstrate flame deceleration, which follows acceleration, and the so-called '' tulip flames.'' (c) 2007 Published by Elsevier Inc. on behalf of The Combustion Institute.},

year={2007},

keywords={premixed flames, flame acceleration, tulip flames, direct numerical, simulations, HYDRODYNAMIC INSTABILITY, NUMERICAL-SIMULATION, CYLINDRICAL-TUBES, WEAKLY TURBULENT, CURVED FLAMES, VELOCITY, DETONATION, DYNAMICS, NONSLIP, WALLS },

}

** RefWorks **

RT Journal Article

SR Print

ID 88499

A1 Bychkov, V.

A1 Akkerman, V.

A1 Fru, G.

A1 Petchenko, A.

A1 Eriksson, Lars-Erik

T1 Flame acceleration in the early stages of burning in tubes

YR 2007

JF Combustion and Flame

SN 0010-2180

VO 150

IS 4

SP 263

OP 276

AB Acceleration of premixed laminar flames in the early stages of burning in long tubes is considered. The acceleration mechanism was suggested earlier by Clanet and Searby [Combust. Flame 105 (1996) 225]. Acceleration happens due to the initial ignition geometry at the tube axis when a flame develops to a finger-shaped front, with surface area growing exponentially in time. Flame surface area grows quite fast but only for a short time. The analytical theory of flame acceleration is developed, which determines the growth rate, the total acceleration time, and the maximal increase of the flame surface area. Direct numerical simulations of the process are performed for the complete set of combustion equations. The simulations results and the theory are in good agreement with the previous experiments. The numerical simulations also demonstrate flame deceleration, which follows acceleration, and the so-called '' tulip flames.'' (c) 2007 Published by Elsevier Inc. on behalf of The Combustion Institute.

LA eng

DO 10.1016/j.comvustflame.2007.01.004

OL 30