Results 11 to 20 of about 566 (187)

An experimental study on coflow diffusion combustion in a pellet-packed bed with different bed lengths [PDF]

open access: yesRoyal Society Open Science, 2018
In experimental investigations on axial symmetry, over-ventilated CH4/air diffusion combustion in a packed bed is executed to study the height, shape and stability of the flame.
Junrui Shi   +6 more
doaj   +1 more source

LES of Partially-Premixed Unsteady Combustion [PDF]

open access: yes41st Aerospace Sciences Meeting and Exhibit, 2003
Large-Eddy Simulation (LES) methodology has been used to model the combustion dynamics in a realistic swirl-stabilized dump combustor. A novel partially-premixed flamelet combustion model is employed to capture the interaction of the unsteady flame-front with local velocity and equivalence ratio fluctuations. Two sets of simulations have been conducted
Christopher Stone, Suresh Menon
openaire   +1 more source

Large Eddy Simulation of Partially Premixed Flame with Local Extinction Phenomenon

open access: yesShanghai Jiaotong Daxue xuebao, 2022
The Sydney partially premixed flame FJ200-5GP-Lr75-103 case with the local extinction phenomenon is studied by large eddy simulation (LES) coupled with the dynamic k equation sub-grid scale model and the dynamic thickened flame (DTF) combustion model. To
ZENG Haixiang, WANG Ping, SHROTRIYA Prashant, JIANG Linsong, MURUGESAN Meenatchidevi
doaj   +1 more source

A Computational Fluid Dynamics Study of Turbulence, Radiation, and Combustion Models for Natural Gas Combustion Burner

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2018
This paper presents a Computational Fluid Dynamics (CFD) study of a natural gas combustion burner focusing on the effect of combustion, thermal radiation and turbulence models on the temperature and chemical species concentration fields.
Yik Siang Pang   +3 more
doaj   +1 more source

Effect of Injection Strategies in Diesel/NG Direct-Injection Engines on the Combustion Process and Emissions under Low-Load Operating Conditions

open access: yesEnergies, 2020
The direct injection of natural gas (NG), which is an important research direction in the development of NG engines, has the potential to improve thermal efficiency and emissions.
Jinze Li   +6 more
doaj   +1 more source

Turbulence and Combustion Model Choice for Modeling Methane-air Low Swirl Burners [PDF]

open access: yesJournal of Applied Fluid Mechanics
Combustion plays a major role in satisfying enormous needs in our world, and burners are an essential component of industrial combustion applications. With its flame stabilization technique, low swirl burner (LSB) technology offers interesting outcomes ...
M. Ladjani, M. S. Lounici, S. Ouchikh
doaj   +1 more source

Experimental and Numerical Study of Oxygen Diluted Partially Premixed Dimethyl Ether/ Methane Counter Flow Flame

open access: yesChemical Engineering Transactions, 2017
The oxygen diluted partially premixed dimethyl ether/methane counter flow flames were discussed in this paper. Flame images and flame structures were obtained through experiments and numerical simulation.
J. Luo, W. Li, L. Tian, L. Liu
doaj   +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

Dynamics of Thermoacoustic Oscillations in Swirl Stabilized Combustor without and with Porous Inert Media

open access: yesJournal of Combustion, 2022
Lean premixed (LPM) combustion processes are of increased interest to the gas turbine industry due to their reduction in harmful emissions. These processes are susceptible to thermoacoustic instabilities, which are produced when energy added by an in ...
Cody Dowd, Joseph Meadows
doaj   +1 more source

Measurement of Temperature and H2O Concentration in Premixed CH4/Air Flame Using Two Partially Overlapped H2O Absorption Signals in the Near Infrared Region

open access: yesApplied Sciences, 2021
It is important to monitor the temperature and H2O concentration in a large combustion environment in order to improve combustion (and thermal) efficiency and reduce harmful combustion emissions.
Sunghyun So   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy