Results 11 to 20 of about 15,347 (202)

Numerical investigation of the premixed V-flame stabilization and blowout [PDF]

open access: yesمهندسی مکانیک شریف, 2021
Global warming and high fossil fuel consumption increase the application of the low-Nox burner with lean-premixed combustion. However, this type of combustion is more susceptible to thermoacoustic instabilities.
N. Nabatian
doaj   +1 more source

DNS for Turbulent Premixed Combustion

open access: yes, 2021
Most of practical combustion occurs in turbulent flows which involve strong coupling between turbulence and chemical processes. The heat release from combustion alters the fluid properties such as density and viscosity and in turns affects the turbulence.
Dipal, Patel,, Martin, Agelin-Chaab,
openaire   +3 more sources

Karlovitz Numbers and Premixed Turbulent Combustion Regimes for Complex-Chemistry Flames

open access: yesEnergies, 2022
The structure of premixed turbulent flames and governing physical mechanisms of the influence of turbulence on premixed burning are often discussed by invoking combustion regime diagrams.
Andrei N. Lipatnikov   +1 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.
A Khalid   +17 more
core   +1 more source

Modelling of Conditional Scalar Dissipation Rate in Turbulent Premixed Combustion

open access: yesComputation, 2021
In turbulent premixed flames, for the mixing at a molecular level of reactants and products on the flame surface, it is crucial to sustain the combustion.
Shokri Amzin, Mariusz Domagała
doaj   +1 more source

Scaling of Second-Order Structure Functions in Turbulent Premixed Flames in the Flamelet Combustion Regime

open access: yesFluids, 2020
The second-order velocity structure function statistics have been analysed using a DNS database of statistically planar turbulent premixed flames subjected to unburned gas forcing.
Peter Brearley   +3 more
doaj   +1 more source

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

Reaction zones and their structure in MILD combustion [PDF]

open access: yes, 2014
Three-dimensional direct numerical simulation (DNS) of turbulent combustion under moderate and intense low-oxygen dilution (MILD) conditions has been carried out inside a cuboid with inflow and outflow boundaries on the upstream and downstreamfaces ...

core   +2 more sources

The Impacts of Three Flamelet Burning Regimes in Nonlinear Combustion Dynamics [PDF]

open access: yes, 2018
Axisymmetric simulations of a liquid rocket engine are performed using a delayed detached-eddy-simulation (DDES) turbulence model with the Compressible Flamelet Progress Variable (CFPV) combustion model.
Nguyen, Tuan, Sirignano, William A.
core   +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

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