Results 11 to 20 of about 694,770 (178)

Experimental Characterisation of Swirl Stabilized Annular Stratified Flames [PDF]

open access: yes, 2007
A burner for investigating lean stratified premixed flames propagating in intense isotropic turbulence has been developed. Lean pre-mixtures of methane at different equivalence ratios are divided between two concentric co-flows to obtain annular ...
Bonaldo, Alessio
core   +7 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

Conditional moment closures for turbulent reacting flows [PDF]

open access: yes, 2003
Mathematical modelling of the turbulent combustion process is becoming increasingly applied in calculations to assist in the design and analysis of practical combustion devices for efficiency-improvement and emission reduction. The current requirement to
Woolley, Robert Michael
core   +6 more sources

Soot formation in turbulent vaporised kerosine/air jet flames at elevated pressure [PDF]

open access: yes, 1993
The objective of this thesis is to develop and validate a model of soot formation which is capable of being applied to a computational fluid dynamic (CFD) simulation of gas turbine combustion.
Young, K. J.
core   +7 more sources

Flame propagation behavior of propane–air premixed combustion in a confined space with two perforated plates at different initial pressures

open access: yesEnergy Science & Engineering, 2022
The aim of this paper is to analyze local autoignition induced by secondary flame acceleration. The secondary flame acceleration process and the local autoignition formation mechanism at the condition of the secondary flame acceleration propagation were ...
Yangyang Yu   +3 more
doaj   +1 more source

Turbulent Superstructures in Inert Jets and Diffusion Jet Flames

open access: yesFluids, 2021
An experimental study of spatially localized very large-scale motion superstructures, propagating in a jet of carbon dioxide at low Reynolds numbers, was carried out.
Vadim Lemanov   +2 more
doaj   +1 more source

Measurement of turbulent flame speed of natural gas/air mixtures at elevated pressure [PDF]

open access: yes, 2010
Turbulent flame speeds were measured over a range of pressures to 0.8 MPa using a jet flow apparatus fired with a synthetic mixture representing a mid-European natural gas. The equivalence ratio empty set was 0.9.
Witton, John J., Li, L.
core   +1 more source

Simultaneous measurements of flame geometry and flow field by OH-PLIF/Stereo PIV

open access: yesNihon Kikai Gakkai ronbunshu, 2016
It is difficult to understand turbulent combustion, because the combustion process is very complex and unsteady. One of the useful parameters for discussion of the unsteady flame behaviors is the flame stretch rate, which is evaluated by local flame ...
Kazuhiro YAMAMOTO   +2 more
doaj   +1 more source

Anchoring of premixed jet flames in vitiated crossflow with pulsed nanosecond spark discharge

open access: yesApplications in Energy and Combustion Science, 2020
This paper deals with the effect of non-equilibrium plasma on the anchoring of a premixed jet flame in hot vitiated crossflow at atmospheric pressure. The turbulent vitiated crossflow was generated by an array of 4×4 premixed turbulent jet flames burning
Sergey Shcherbanev   +6 more
doaj   +1 more source

A study of mixing and intermittency in a coaxial turbulent jet [PDF]

open access: yes, 2010
A large eddy simulation study of mixing and intermittency of a coaxial turbulent jet discharging into an unconfined domain has been conducted. The work aims to gain insight into the mixing and intermittency of turbulent coaxial jet configurations. The
Savill, A.M.   +7 more
core   +1 more source

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