Modeling and large eddy simulation of deflagration dynamics in a closed vessel

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The paper describes a large eddy simulation model of gaseous deflagration in a closed vessel and simulation results for stoichiometric hydrogen-air premixed combustion initiated at the center of a closed 6.37-m3 spherical vessel. The model is based on the large eddy simulation approach to turbulence modeling and the gradient method to model the mass burning rate in premixed combustion. The method for simulated flame-front thickness reduction is suggested, and its performance is investigated. The solution-adaptive mesh refinement is used to decrease the CPU time required for simulation. The simulated deflagration-pressure dynamics is in agreement with published experimental data, and the flame-front velocity is in agreement with simulation results obtained according to the lumped parameter model for the same experiment.

LanguageEnglish
Pages136-144
Number of pages9
JournalCombustion, Explosion and Shock Waves
Volume40
Issue number2
DOIs
Publication statusPublished - 1 Mar 2004

Fingerprint

deflagration
Large eddy simulation
large eddy simulation
vessels
flame propagation
burning rate
Gradient methods
dynamic pressure
simulation
Program processors
Hydrogen
Turbulence
turbulence
gradients
air
hydrogen
Air
Experiments

Keywords

  • Combustion
  • Deflagration
  • Hydrogen
  • Large eddy simulation

Cite this

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abstract = "The paper describes a large eddy simulation model of gaseous deflagration in a closed vessel and simulation results for stoichiometric hydrogen-air premixed combustion initiated at the center of a closed 6.37-m3 spherical vessel. The model is based on the large eddy simulation approach to turbulence modeling and the gradient method to model the mass burning rate in premixed combustion. The method for simulated flame-front thickness reduction is suggested, and its performance is investigated. The solution-adaptive mesh refinement is used to decrease the CPU time required for simulation. The simulated deflagration-pressure dynamics is in agreement with published experimental data, and the flame-front velocity is in agreement with simulation results obtained according to the lumped parameter model for the same experiment.",
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Modeling and large eddy simulation of deflagration dynamics in a closed vessel. / Makarov, D. V.; Molkov, V. V.

In: Combustion, Explosion and Shock Waves, Vol. 40, No. 2, 01.03.2004, p. 136-144.

Research output: Contribution to journalArticle

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