Results 41 to 50 of about 1,995,636 (179)

Turbulent Flame Geometry Measurements in a Mass-Production Gasoline Direct Injection Engine

Energies, 2020
Direct optical access to the combustion chamber of a gasoline direct injection (GDI) engine provides extremely valuable information about the combustion process.
Manfredi Villani, Phillip Aquino
doaj   +1 more source

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

Energy 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, Junhong Zhang, Jun Wang, Dan Wang   +3 more
doaj   +1 more source

Model constant C of turbulent NO reaction time model

Case Studies in Thermal Engineering, 2017
The NO concentration of turbulent jet flames with different fuel, jet velocity, and jet diameter are simulated with the turbulent NO reaction time model. The predicted NO profile has very good agreement with the experimental data.
Qiong Li, Yuexinzhu Lan, Peiyong Wang
doaj   +1 more source

Nanosecond repetitively pulsed discharges and conventional sparks of ammonia-air mixtures in a fan-stirred cruciform burner: Flammability limits and ignition transition

Applications in Energy and Combustion Science, 2023
Ammonia, an efficient hydrogen carrier, is crucial for achieving net-zero emissions. However, its low reactivity, as manifested through small unstretched laminar flame speed (SL,0 ∼ 7 cm/s) and large laminar flame thickness (δL ∼ 2.85 mm) at atmospheric ...
S.S. Shy, V.T. Mai, Y.R. Chen, H.Y. Hsieh   +3 more
doaj   +1 more source

Fundamental studies of premixed combustion [PDF]

, 1998
The thesis comprises a fundamental study of spherical premixed flame propagation,originating at a point under both laminar and turbulent propagation.
Haq, Md Zahurul
core   +4 more sources

Correlation of flame speed with stretch in turbulent premixed methane/air flames [PDF]

Symposium (International) on Combustion, 1998
Direct numerical simulations of two-dimensional unsteady premixed methane/air flames are performed to determine the correlation of flame speed with stretch over a wide range of curvatures and strain rates generated by intense two-dimensional turbulence.
Chen, J.H., Im, Hong G.
openaire   +1 more source

DNS analysis on the correlation between local burning velocity and flame displacement speed of turbulent premixed flames

Journal of Thermal Science and Technology
The local burning velocity and flame displacement speed are the major properties of premixed flames. The local burning velocity, which is the instantaneous quantity based on the local consumption rate of the unburnt mixture, is considered to be the most ...
Kazuya TSUBOI
doaj   +1 more source

Computer simulation of vortex combustion processes in fire-tube boilers

EPJ Web of Conferences, 2015
The article describes computer simulation of the turbulent methane-air combustion in a fire-tube boiler furnace. Computer simulations performed for variants of once-through fire-tube furnace and reversive flame furnace.
Khaustov Sergei A., Zavorin Alexander S., Buvakov Konstantin V., Kudryashova Lidiya D., Tshelkunova Anastasiya V.   +4 more
doaj   +1 more source

Deep Neural Network-Based Generation of Planar CH Distribution through Flame Chemiluminescence in Premixed Turbulent Flame

Energy and AI, 2023
Flame front structure is one of the most fundamental characteristics and, hence, vital for understanding combustion processes. Measuring flame front structure in turbulent flames usually needs laser-based diagnostic techniques, mostly planar laser ...
Lei Han, Qiang Gao, Dayuan Zhang, Zhanyu Feng, Zhiwei Sun, Bo Li, Zhongshan Li   +6 more
doaj   +1 more source

Investigations on conical lean turbulent premixed hydrogenated natural gas flames

Fuel Communications
Hydrogen's ability to enhance carbon neutrality in combustion processes puts forward the use of hydrogenated fuels, both in the form of fuel and an energy carrier as a potential decarbonization solution.
Dilay Güleryüz, Christophe Allouis, İskender Gökalp   +2 more
doaj   +1 more source