Results 1 to 10 of about 899 (247)

Evolution of Turbulent Burning Velocity and Turbulence Intensity During Aluminum Flame Propagation

Chemical Engineering Transactions
Burning velocity, i.e. the consumption rate of the reactant by the flame front, is a key parameter for modelling flame propagation during accidental gas or dust explosions.
Clement Chanut, Fares Saad Al Hadidi, Frederic Heymes, Ernesto Salzano   +3 more
doaj   +2 more sources

A Direct Numerical Simulation Assessment of Turbulent Burning Velocity Parametrizations for Non-Unity Lewis Numbers

Energies, 2023
The predictions of turbulent burning velocity parameterizations for non-unity Lewis number flames have been assessed based on a single-step chemistry Direct Numerical Simulation (DNS) database of premixed Bunsen flames for different values of ...
Vishnu Mohan, Marco Herbert, Markus Klein, Nilanjan Chakraborty   +3 more
doaj   +1 more source

Turbulent burning velocity and thermodiffusive instability of premixed flames

Physical Review E, 2023
Reported in the paper are results of unsteady three-dimensional direct numerical simulations of laminar and turbulent, lean hydrogen-air, complex-chemistry flames propagating in forced turbulence in a box. To explore the eventual influence of thermo-diffusive instability of laminar flames on turbulent burning velocity, (i) a critical length scale Λn ...
Hsu Chew Lee, B. Wu, Peng Dai, Minping Wan, Andrei N. Lipatnikov   +4 more
openaire   +4 more sources

Propagation Properties of Turbulent Premixed Flames Neutral for Thermo-Diffusive Effects

International Journal of Automotive Engineering, 2020
Burning velocity is one of the important properties of premixed turbulent flames. Premixed turbulent flames are, in general, subjected to the thermo-diffusive effects in addition to the increase in the flame front area due to the influence of turbulence.
Toshiaki Kitagawa, Hiroaki Watanabe, Ryou Nishiyama, Riou Sonokawa, Kenichi Shinoda   +4 more
doaj   +1 more source

The turbulent burning velocity of methanol–air mixtures [PDF]

Fuel, 2014
Methanol is a sustainable and versatile alternative fuel for spark-ignition engines and other combustion applications. To characterize the combustion behavior of this fuel, a good understanding of the factors affecting its turbulent burning velocity is required.
Vancoillie, Jeroen, Sharpe, Gary, Lawes, Malcolm, Verhelst, Sebastian   +3 more
openaire   +2 more sources

Direct determination of burning velocity during aluminium flame propagation

Chemical Engineering Transactions, 2022
Numerical simulations are needed to model accurately the consequences of dust explosions. One key parameter for modelling the flame propagation is the burning velocity (ie the consumption rate of the reactants by the flame front).
Clement Chanut, Frederic Heymes, Christian Lopez   +2 more
doaj   +1 more source

Analysis of Turbulent Burning Velocity of Spherically Propagating Premixed Flame with Effective Turbulence Intensity

Journal of Thermal Science and Technology, 2012
Burning velocity of spherically propagating turbulent flames kept increasing with flame propagation. On the other hand, turbulent burning velocity obtained from burner stabilized flame is constant for a given turbulence intensity.
Akihiro HAYAKAWA, Yukito MIKI, Yukihide NAGANO, Toshiaki KITAGAWA   +3 more
doaj   +1 more source

An Analysis of Local Quantities of Turbulent Premixed Flames Using DNS Databases

Journal of Thermal Science and Technology, 2008
A numerical analysis was performed using DNS (Direct Numerical Simulation) databases of statistically steady and fully developed turbulent premixed flames with different density ratios and with different Lewis numbers.
Kazuya TSUBOI, Shinnosuke NISHIKI, Tatsuya HASEGAWA   +2 more
doaj   +1 more source

Effects of local flame displacement velocity on turbulent burning velocity for lean H2-C3H8-Air mixtures

Nihon Kikai Gakkai ronbunshu, 2015
This study was made to establish a prediction method of turbulent burning velocity for lean hydrogen-propane-air mixtures, with paying special attention to the importance of local burning velocity to turbulent burning velocity.
Masaya NAKAHARA, Yoshinori MATSUO, Yoshio OMOTO, Tsubasa SAEKI, Fumiaki ABE   +4 more
doaj   +1 more source

Modelling of turbulent hydrogen-blended premixed flames using algebraic flame surface wrinkling closure for the Lewis numbers and mean local burning velocity

Alexandria Engineering Journal, 2022
Hydrogen-blended fuel is of fundamental interest due to difficulties in modelling and its practical significance for the development of high-performance hydrogen combustion devices and safety technologies for the prediction and prevention of fire or ...
Siva PR Muppala
doaj   +1 more source