Results 11 to 20 of about 1,135 (238)

Turbulent spark-jet ignition in SI gas fuelled engine [PDF]

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   +4 more sources

High fidelity numerical simulations of turbulent jet ignition and combustion

open access: yes, 2016
Turbulent jet ignition (TJI) is a novel ignition enhancement method, which facilitates the combustion of lean and ultra-lean mixtures in complex propulsion systems and engines.
Validi, AbdoulAhad
core   +2 more sources

Experimental studies of turbulent jet ignition : combustion visualization and pressure trace analysis using an optically accessible rapid compression machine

open access: yes, 2016
"This dissertation presents several series of experiments on turbulent jet ignition (TJI) using an optically accessiblerapid compression machine (RCM), presenting pressure trace data and combustion visualization." -- Abstract.Thesis (Ph.
Gentz, Gerald Raymond
core   +2 more sources

A Novel One- and Zero-Dimensional Model for Turbulent Jet Ignition [PDF]

open access: yesFlow, Turbulence and Combustion, 2021
AbstractTurbulent jet ignition (TJI) is a promising combustion technology for burning highly diluted air-fuel mixtures. Computationally efficient models to assess the effect of the operating conditions and design parameters on the ignition propensity and timing are of paramount importance for the development of combustion systems employing TJI. To this
Konstantinos Bardis   +6 more
openaire   +2 more sources

The impact of gasoline formulation on turbulent jet ignition

open access: yesFuel, 2022
Turbulent jet ignition (TJI) is a promising technology for burning ultra-lean mixtures; the process is comprised of hot reactive jets issuing from a pre-chamber (PC) and initiating combustion in the main chamber (MC). The present study employs a simplified zero-dimensional (0D) partially stirred reactor (PaSR) model to describe the complex mixing and ...
Gorbatenko, Inna   +4 more
openaire   +2 more sources

Ignition Characteristics Of Turbulent Jet Flows [PDF]

open access: yesChemical Engineering Research and Design, 2002
Releases of flammable materials from chemical plant are a hazard since their dispersion down to safe levels only occurs at some distance from their source. Within this distance, accidental ignition can give rise to fires or explosions. This paper describes the development of computational fluid dynamic models capable of predicting the ignition hazards ...
R.F. Alvani, M. Fairweather
openaire   +1 more source

LES Of intermittency in a turbulent round jet with different inlet conditions [PDF]

open access: yes, 2010
Large eddy simulation (LES) is a promising technique for accurate prediction of turbulent free shear flows in a wide range of applications. Here the LES technique has been applied to study the intermittency in a high Reynolds number turbulent jet with ...
M.P. Kirkpatrick   +11 more
core   +1 more source

External Intermittency Simulation in Turbulent Round Jets [PDF]

open access: yes, 2012
to study passive scalar mixing and intermittency in turbulent round jets. Both simulation techniques are applied to the case of a low Reynolds number jet with Re between time-averaged results for the scalar field of the low Re case demonstrate reasonable
Falle, SAEG   +15 more
core   +1 more source

Jet ignition in small two-stroke engines: an experimental survey on benefits and challenges [PDF]

open access: yesE3S Web of Conferences, 2021
Increasingly stringent policy on carbon dioxide have proved to be a severe constraint on the design of light two-stroke (2S) engines. The enhancement of efficiency is claimed to be the main target to make these devices compliant with future regulations ...
Bosi Lorenzo   +4 more
doaj   +1 more source

Numerical Simulation of Laminar and Turbulent Methane/Air Flames Based on a DRG-Derived Skeletal Mechanism

open access: yesEurasian Chemico-Technological Journal, 2020
Simulation of turbulent flames using detailed chemical mechanisms is still a challenge in numerical combustion due to the large number of species and the stiffness of the system of governing equations.
F. C. Minuzzi, Ch. Yu, U. Maas
doaj   +1 more source

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