Results 51 to 60 of about 61,190 (204)

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

The effect of flexible obstacles with different thicknesses on explosion propagation of premixed methane-air in a confined duct

Heliyon, 2023
The effect of flexible obstacles with varying thicknesses on the explosion characteristics of combustible gas in a simulated confined duct (cross section 80 mm × 80 mm, length 3 m) was experimentally investigated, aiming to reduce the huge losses caused ...
Zheshi Wang, Zengliang Zhang, Jia Yu, Zhi Zhai   +3 more
doaj   +1 more source

Effects of Mean Inflow Velocity and Droplet Diameter on the Propagation of Turbulent V-Shaped Flames in Droplet-Laden Mixtures

Fluids, 2020
Three-dimensional carrier phase Direct Numerical Simulations of V-shaped n-heptane spray flames have been performed for different initially mono-sized droplet diameters to investigate the influence of mean flow velocity on the burning rate and flame ...
Gulcan Ozel Erol, Nilanjan Chakraborty
doaj   +1 more source

Reconstruction Method of 3D Turbulent Flames by Background-Oriented Schlieren Tomography and Analysis of Time Asynchrony

Fire, 2023
Background-oriented Schlieren tomography (BOST) is widely used for 3D reconstruction of turbulent flames. Two major concerns are associated with 3D reconstruction. One is the time asynchrony within the data acquisition of the high-speed camera. The other
Peng Gao, Yue Zhang, Xiaoxiao Yu, Shikui Dong, Qixiang Chen, Yuan Yuan   +5 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

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

Explosion characteristics and overpressure prediction of hydrogen-doped natural gas under ambient turbulence conditions

Case Studies in Thermal Engineering
Explosions of combustible gases under ambient turbulence exhibit complex flame propagation and overpressure evolution characteristics, posing challenges to explosion safety assessments.
Ranran Li, Zhongmo Xu, Mingzhi Li, Shuhong Li, Zhenyi Liu, Zihao Xiu, Qiqi Liu   +6 more
doaj   +1 more source

Effects of Turbulent Reynolds Number on the Displacement Speed Statistics in the Thin Reaction Zones Regime of Turbulent Premixed Combustion

Journal of Combustion, 2011
The effects of turbulent Reynolds number on the statistical behaviour of the displacement speed have been studied using three-dimensional Direct Numerical Simulation of statistically planar turbulent premixed flames.
Nilanjan Chakraborty, Markus Klein, R. S. Cant   +2 more
doaj   +1 more source

Analysis of the Combustion Process in a Hydrogen-Fueled CFR Engine

Energies, 2023
Green hydrogen, produced using renewable energy, is nowadays one of the most promising alternatives to fossil fuels for reducing pollutant emissions and in turn global warming.
Stefano Beccari, Emiliano Pipitone, Salvatore Caltabellotta   +2 more
doaj   +1 more source

Evaluation of the Predictive Capabilities of a Phenomenological Combustion Model for Natural Gas SI Engine

Journal of Middle European Construction and Design of Cars, 2017
The current study evaluates the predictive capabilities of a new phenomenological combustion model, available as a part of the GT-Suite software package.
Toman Rastislav, Macek Jan
doaj   +1 more source