Results 11 to 20 of about 11,005 (312)

Measurement of turbulent flame speed of natural gas/air mixtures at elevated pressure [PDF]

open access: yes, 2010
Turbulent flame speeds were measured over a range of pressures to 0.8 MPa using a jet flow apparatus fired with a synthetic mixture representing a mid-European natural gas. The equivalence ratio empty set was 0.9.
Witton, John J., Li, L.
core   +1 more source

Turbulent Premixed Combustion in SI Engine

open access: yesDiyala Journal of Engineering Sciences, 2018
The turbulent lean premixed combustion simulation is implemented in 4- stroke spark ignition (SI) engine. The Turbulent Flame speed Closure model (TFC) is used in different turbulent flow conditions.
Mohammed Alhumairi, Sami A. Nawi
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

Flame trajectory of a non-vertical turbulent buoyant jet flame

open access: yesApplications in Energy and Combustion Science, 2021
This paper presents a theoretical and experimental study on the flame trajectory of a non-vertical turbulent diffusion flame in still air. A series of propane turbulent flame tests (inner diameter of the burner: d=13 mm) with different initial Froude ...
Wei Gao   +4 more
doaj   +1 more source

Numerical Study on the Effects of Turbulence Scale on Spherically Propagating Hydrogen Flames within Multiple Flame Radii

open access: yesInternational Journal of Automotive Engineering, 2019
Three-dimensional direct numerical simulations of spherically propagating premixed turbulent hydrogen flames were carried out to clarify the influence of turbulence scale on propagating hydrogen/air flame.
Hazim Shehab   +3 more
doaj   +1 more source

Statistics and topology of local flame–flame interactions in turbulent flames [PDF]

open access: yesCombustion and Flame, 2019
Abstract Flame–flame interaction events occur frequently in turbulent premixed flames and change the local structure and dynamics of flames. It is essential to understand these flame–flame interaction events to develop high-fidelity combustion models for use in modern combustion devices.
Ankit Tyagi   +3 more
openaire   +2 more sources

A Lagrangian-based flame index for the transported probability density function method

open access: yesTheoretical and Applied Mechanics Letters, 2022
We propose a new flame index for the transported probability density function (PDF) method. The flame index uses mixing flux projections of Lagrangian particles on mixture fraction and progress variable directions as the metrics to identify the ...
Zhen Lu   +4 more
doaj   +1 more source

The “turbulent flame speed” of wrinkled premixed flames

open access: yesComptes Rendus. Mécanique, 2012
The determination of the turbulent flame speed is a central problem in combustion theory. Early studies by Damköhler and Shelkin resorted to geometrical and scaling arguments to deduce expressions for the turbulent flame speed and its dependence on turbulence intensity.
Moshe Matalon, CRETA, Francesco
openaire   +1 more source

Closure Relations for Fluxes of Flame Surface Density and Scalar Dissipation Rate in Turbulent Premixed Flames

open access: yesFluids, 2019
In this study, closure relations for total and turbulent convection fluxes of flame surface density and scalar dissipation rate were developed (i) by placing the focus of consideration on the flow velocity conditioned to the instantaneous flame within ...
Andrei N. Lipatnikov   +2 more
doaj   +1 more source

Dataset for transient 3D simulations of turbulent premixed flames of Gas-to-Liquid (GTL) fuel

open access: yesData in Brief, 2021
A fan-stirred combustion vessel is used to study the premixed turbulent combustion of diesel, Gas to Liquids (GTL) and 50/50 diesel-GTL and to generate these datasets.
Abdellatif M. Sadeq   +2 more
doaj   +1 more source

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