Results 21 to 30 of about 1,135 (238)

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

Investigation of the influence of swirl on a confined coannular swirl jet [PDF]

open access: yes, 2010
Large Eddy Simulations are used to model a turbulent confined coannular combustor and examine the effects of swirl on the flow field and mixing. Three separate simulations with relatively high mesh resolutions and different swirl numbers have been ...
Jenkins, K.W.   +5 more
core   +1 more source

Phenomenological model for determining velocity field of LPG jet in combustion chamber of direct injection S.I. engine

open access: yesVietnam Journal of Mechanics, 2004
A phenomenological model has been established to predict the velocity distribution of LPG (Liquefied Petroleum Gas) jet in combustion chamber of spark ignition (SI) engine.
Bui Van Ga   +3 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

Large Eddy Simulations of gaseous flames in gas turbine combustion chambers [PDF]

open access: yes, 2012
Recent developments in numerical schemes, turbulent combustion models and the regular increase of computing power allow Large Eddy Simulation (LES) to be applied to real industrial burners.
Staffelbach, Gabriel   +2 more
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

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

Numerical analysis of reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion [PDF]

open access: yes, 2009
The scalar mixing time scale, a key quantity in many turbulent combustion models, is investigated for reactive scalars in premixed combustion. Direct numerical simulations (DNS) of three-dimensional, turbulent Bunsen flames with reduced methane-air ...
Grout, R.W.   +7 more
core   +1 more source

Combustion modelling of turbulent jet ignition in a divided combustion chamber

open access: yesInternational Journal of Engine Research, 2021
Turbulent jet ignition is seen as one of the most promising strategies to achieve stable lean-burn operation in modern spark-ignition engines thanks to its ability to promote rapid combustion. A nearly stoichiometric mixture is ignited in a small-volume pre-chamber, following which multiple hot turbulent jets are discharged in the main chamber to ...
Olcuire M.   +5 more
openaire   +1 more source

Auto-Ignition and Flame Stabilization of Hydrogen / Natural Gas / Nitrogen Jets in a Vitiated Cross-Flow at Elevated Pressure

open access: yes, 2013
The influence of natural gas (NG) on the auto-ignition behavior of hydrogen (H2)/nitrogen (N2) fuel jets injected into a vitiated cross-flow was studied at conditions relevant for practical combustion systems (p = 15 bar, Tcross-flow = 1173 K).
Aigner, Manfred   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy