Results 11 to 20 of about 1,693,376 (277)

Turbulent Premixed Flame Kernel Growth During The Early Stages Using Direct Numerical Simulation [PDF]

open access: yes, 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.
core   +7 more sources

Improvement and validation of a thermodynamic S.I. engine simulation code [PDF]

open access: yes, 2003
This study was concerned with improvement and validation of a thermodynamic spark ignition engine simulation code developed in Leeds. Experimental validation data were generated using a central ignition, disc-shaped combustion chamber variant of a ...
Abdi Aghdam, Ebrahim
core   +7 more sources

Flow and combustion in disc and pent-roof SI engines [PDF]

open access: yes, 2006
Reported in this thesis is a study of combustion in a disc-shaped combustion chamber spark ignition engine, and in-cylinder flow and combustion in an idealised pent-roof spark ignition engine. Both engines were skip fired, to remove residuals and ensure
Murad, Ahmad E. M. A
core   +6 more sources

Turbulent flame development in a high-pressure combustion vessel [PDF]

open access: yes, 2005
The objective of this work was to extend the range of turbulent burning velocities presented in the literature by performing new measurements at elevated pressures over a range of turbulent velocities, u' (r. m. s. deviation from the mean velocity).
Ormsby, Matthew P.
core   +7 more sources

Effect of flame speed and explosion pressure on flame quenching performance for in-line crimped-ribbon flame arresters

open access: yesCogent Engineering, 2022
The effects of flame speed and explosion pressure on the flame-quenching performance of an in-line crimped-ribbon flame arrester was investigated using propane, ethylene, and hydrogen/air mixtures.
Shaochen Sun   +4 more
doaj   +1 more source

Variation of Flame Displacement Speed in a Turbulent Premixed Flame [PDF]

open access: yesAustralasian Fluid Mechanics Conference (AFMC), 2020
Modelling of the flame displacement speed is of interest in many Large Eddy Simulation (LES) frameworks including the Flame Surface Density approach. In this study, a Direct Numerical Simulation (DNS) dataset is used to calculate the displacement speed in a premixed, methane–air, round jet flame in the thin reaction zone (TRZ) regime.
Panek, Pavel   +3 more
openaire   +2 more sources

Experimental and Numerical Studies of Ignition Delay Time and Laminar Flame Speed of JP-10 at Elevated Temperature Conditions

open access: yesFrontiers in Energy Research, 2022
In this work, the laminar flame speeds of JP-10/air mixtures and ignition delay time of JP-10/O2/Ar mixtures have been studied over a wide range of experimental conditions using a premixed Bunsen flame and a shock tube.
Junsen Yang   +6 more
doaj   +1 more source

Flame speed in diffusion dominated premixed flames

open access: yesCombustion Theory and Modelling, 2022
Development of a premixed flame theory that includes the effects of flame stretch and curvature has been at the forefront of combustion research. Diffusion dominated flames such as highly curved flame balls present a challenging flame structure that has not been included in current flame stretch theory so far.
Faizan Habib Vance   +2 more
openaire   +1 more source

Experimental Study on Horizontal Flame Spread of Dual-Flame Sources for Building Façade Energy Conservation FPU Foam Under the Effect of Lateral Wind

open access: yesFrontiers in Energy Research, 2022
The thermal safety of building façade energy conservation materials is commonly affected by the wind in the surrounding environment. In addition, multiple fire sources might be formed because of the secondary ignition of the primary fire source.
Wei Zhang, Jingwei Wang
doaj   +1 more source

Influence of hydrodynamic processes on apparent flame velocity in accidental explosions [PDF]

open access: yesE3S Web of Conferences, 2023
The main impact factor of an accidental explosion is explosive pressure, the numerical value of which is determined by the magnitude of the apparent flame velocity during explosive combustion of an explosive mixture.
Komarov Aleksandr   +2 more
doaj   +1 more source

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