Results 11 to 20 of about 49,600 (227)

Experimental Investigation on the Effects of the Geometry of the Pilot Burner on Main Flame

open access: yesEnergies, 2021
Various kinds of pilot burners were experimentally investigated to examine the effects of their geometry and their location relative to the main burner of a real size combustor.
Cheol Woo Lee, In Su Kim, Jung Goo Hong
doaj   +1 more source

LES-CMC simulations of different auto-ignition regimes of hydrogen in a hot turbulent air Co-flow [PDF]

open access: yes, 2013
Large-Eddy Simulation (LES) results in combination with first-order Conditional Moment Closure (CMC) are presented for a hydrogen jet, diluted with nitrogen, issued into a turbulent co-flowing hot air stream.
Mastorakos, E   +2 more
core   +1 more source

Flamelet Characteristics of Gaseous and Spray Lifted Flames on Two-Dimensional Direct Numerical Simulations

open access: yesJournal of Fluid Science and Technology, 2008
The detailed behaviors of gaseous and spray lifted flames are studied by two- dimensional direct numerical simulations (DNS), and the characteristics of the flamelets are investigated in terms of two key variables for flamelet modeling, namely mixture ...
Yuya BABA, Ryoichi KUROSE
doaj   +1 more source

A Pressurized Vitiated Co-Flow Burner and Its Preliminary Application for a Methane Lifted Flame

open access: yesEnergies, 2018
A new pressurized vitiated co-flow burner (PVCB) was designed and built for the investigation of lifted flame properties and was supported by a vitiated co-flow of hot combustion products from a lean H2/air flame at a controllable pressure; its ...
Qiushi Qin   +5 more
doaj   +1 more source

Effect of a single nanosecond pulsed discharge on a flat methane–air flame

open access: yesApplications in Energy and Combustion Science, 2023
Successful implementation of plasma-assisted combustion in applied thermal processes heavily relies on how the plasma can be formed as it interacts with the reactive flow and what the effects are of such a plasma on the combustion process.
Yupan Bao   +6 more
doaj   +1 more source

Improvement of Laminar Lifted Flame Stability Excited by High-Frequency Acoustic Oscillation

open access: yesJournal of Thermal Science and Technology, 2009
A high-frequency (20kHz) standing wave was applied to the unburned mixture upstream of a methane-air lifted jet flame using a bolt-clamped Langevin transducer (BLT) to improve stability.
Mitsutomo HIROTA   +3 more
doaj   +1 more source

Effect of hydrogen addition on combustion and thermal characteristics of impinging non-premixed jet flames for various heating value gases

open access: yesCase Studies in Thermal Engineering, 2023
This study experimentally investigates the effect of hydrogen addition on combustion and thermal characteristics of impinging non-premixed jet flames for low-heating values gases (LHVGs).
Hyeon Taek Nam   +2 more
doaj   +1 more source

Lifted Partially Premixed Flames in Microgravity [PDF]

open access: yes42nd AIAA Aerospace Sciences Meeting and Exhibit, 2004
Lifted Double and Triple flames are established in the UIC-NASA Partially Premixed microgravity rig. The flames examined in this paper are established above a coannular burner because its axisymmetric geometry allows for future implementation of other non-intrusive optical diagnostic techniques easily.
Andrew Lock   +5 more
openaire   +1 more source

Lift-off and blowoff of a diffusion flame between parallel streams of fuel and air [PDF]

open access: yes, 2006
A numerical analysis is presented to describe the liftoff and blowoff of a diffusion flame in the mixing layer between two parallel streams of fuel (mainly methane diluted with nitrogen) and air emerging from porous walls.
Fernández Tarrazo, Eduardo   +2 more
core   +2 more sources

Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework

open access: yesEnergies, 2019
Within the framework of a Reynolds averaged numerical simulation (RANS) methodology for modeling turbulence, a comparative numerical study of turbulent lifted H2/N2 flames is presented.
Ali Cemal Benim, Björn Pfeiffelmann
doaj   +1 more source

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