Results 21 to 30 of about 646,208 (201)

Computations of a Bluff-Body Stabilised Premixed Flames Using ERN Method

open access: yesChemEngineering, 2022
Combustible carbon-based energy is still prevailing as the world’s leading energy due to its high energy density. However, the oxidation of these hydrocarbons disturbs the natural carbon cycle greatly by increasing greenhouse gases.
Shokri Amzin
doaj   +1 more source

Analysis of the flame–wall interaction in premixed turbulent combustion [PDF]

open access: yesJournal of Fluid Mechanics, 2018
The present work focuses on the flame–wall interaction (FWI) based on direct numerical simulations (DNS) of a head-on premixed flame quenching configuration at the statistically stationary state. The effects of FWI on the turbulent flame temperature, wall heat flux, flame dynamics and flow structures were investigated.
P Zhao, L Wang, Nilanjan Chakraborty
openaire   +2 more sources

Burning Rate in Impinging Jet Flames

open access: yesJournal of Combustion, 2011
A method for evaluating burning velocity in premixed turbulent flames stabilized in divergent mean flows is quantitatively validated using numerical approximations of measured axial profiles of the mean combustion progress variable, mean and conditioned ...
A. N. Lipatnikov
doaj   +1 more source

Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames

open access: yesFuels, 2021
The flame front filtering is a well-known strategy in turbulent premixed combustion. An extension of this approach for the non-premixed combustion context has been proposed by means of directly filtering counterflow diffusion flamelets. Promising results
Pedro Javier Obando Vega   +3 more
doaj   +1 more source

Circle grid fractal plate as a turbulent generator for premixed flame: an overview [PDF]

open access: yes, 2013
This review paper focuses to ascertain a new approach in turbulence generation on the structure of premixed flames and external combustion using a fractal grid pattern.
Othman, Mohd Fahmi   +13 more
core   +1 more source

Investigation of Dilution Effect on CH4/Air Premixed Turbulent Flame Using OH and CH2O Planar Laser-Induced Fluorescence

open access: yesEnergies, 2020
Diluting the combustion mixtures is one of the advanced approaches to reduce the NOx emission of methane/air premixed turbulent flame, especially with high diluents to create a distributed reaction zone and mild combustion, which can lower the ...
Li Yang   +5 more
doaj   +1 more source

Turbulent Premixed Flame Kernel Growth During The Early Stages Using Direct Numerical Simulation [PDF]

open access: yes, 2008
In this thesis Direct Numerical Simulation (DNS) is used to investigate the development of turbulent premixed flame kernels during the early stages of growth typical of the period following spark ignition.
Dunstan, T. D.
core   +4 more sources

Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion

open access: yesCase Studies in Thermal Engineering, 2019
Synthesis gas (Syngas) is a gaseous mixture that consists of 3 species. It is used in creating synthetic natural gas. In this work, the turbulent non-premixed flame of syngas-air combustion in a round-jet burner is numerically investigated. The burner is
Santiphong Klayborworn, Watit Pakdee
doaj   +1 more source

Comparison of Flame Propagation Statistics Extracted from Direct Numerical Simulation Based on Simple and Detailed Chemistry—Part 1: Fundamental Flame Turbulence Interaction

open access: yesEnergies, 2021
In the present study, flame propagation statistics from turbulent statistically planar premixed flames obtained from simple and detailed chemistry, three-dimensional Direct Numerical Simulations, were evaluated and compared to each other.
Felix Benjamin Keil   +4 more
doaj   +1 more source

An algorithm for LES of premixed compressible flows using the Conditional Moment Closure model [PDF]

open access: yes, 2011
A novel numerical method has been developed to couple a recent high order accurate fully compressible upwind method with the Conditional Moment Closure combustion model. The governing equations, turbulence modelling and numerical methods are presented
Bilger, R. W.   +7 more
core   +1 more source

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