Results 21 to 30 of about 656,343 (134)

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

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

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

Mixing and Isosurface Geometry in Turbulent Transverse Jets [PDF]

open access: yes, 2001
Mixing and the geometry of jet-fluid-concentration level sets in turbulent transverse jets were experimentally studied. Jet-fluid concentration fields were measured with laser-induced fluorescence and digital imaging techniques for Reynolds numbers ...
Shan, Wei-Jen Jerry
core   +1 more source

Ignition by Hot Transient Jets in Confined Mixtures of Gaseous Fuels and Air

open access: yesJournal of Combustion, 2016
Ignition of a combustible mixture by a transient jet of hot reactive gas is important for safety of mines, prechamber ignition in IC engines, detonation initiation, and novel constant-volume combustors.
Abdullah Karimi, M. Razi Nalim
doaj   +1 more source

Experimental investigations into high-altitude relight of a gas turbine [PDF]

open access: yes, 2008
This thesis describes experiments to investigate high-altitude relight of a lean direct injection (LDI) combustor. The features that make LDI technology less polluting in terms of NOx compared to conventional combustors are expected to impede relight ...
Read, Robert William
core   +2 more sources

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines

open access: yesApplied Sciences, 2023
To evaluate the significance of the geometrical parameters of a passive pre-chamber on engine performance, this study investigated the design of a plug-and-play passive pre-chamber in a 15 L heavy-duty natural gas engine.
Wei Li   +4 more
doaj   +1 more source

Turbulent spark-jet ignition in SI gas fuelled engine

open access: yesMATEC Web of Conferences, 2017
The article contains a thermodynamic analysis of a new combustion system that allows the combustion of stratified gas mixtures with mean air excess coefficient in the range 1.4-1.8.
Pielecha Ireneusz   +3 more
doaj   +1 more source

Density fluctuation correlations in free turbulent binary mixing [PDF]

open access: yes, 1994
This paper is devoted to the analysis of the turbulent mass flux and, more generally, of the density fluctuation correlation (d.f.c.) effects in variable-density fluid motion.
Chassaing, Patrick   +2 more
core   +1 more source

Experimental investigation of the ignition dynamics in a premixed annular combustor using a pre-chamber ignition system

open access: yesEnergy Conversion and Management: X
In this paper, the ignition characteristics in a MICCA-type annular combustor are studied for the first time using a pre-chamber combustion (PCC) system.
Haroun Hassan   +6 more
doaj   +1 more source

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