Results 31 to 40 of about 73,654 (303)

Flame advection and propagation algorithms [PDF]

open access: yesJournal of Computational Physics, 1980
We present a simple algorithm for approximating the motion of a thin flame front of arbitrary shape and variable connectivity, which is advected by a fluid and which moves with respect to the fluid in the direction of its own normal. As an application, we examine the wrinkling of a flame front by a periodic array of vortex structures.
openaire   +3 more sources

Dynamics of Laterally Propagating Flames in X-ray Bursts. I. Burning Front Structure [PDF]

open access: yes, 2019
We investigate the structure of laterally-propagating flames through the highly-stratified burning layer in an X-ray burst. Two-dimensional hydrodynamics simulations of flame propagation are performed through a rotating plane-parallel atmosphere ...
Cavecchi, Yuri   +5 more
core   +2 more sources

Numerical Simulation on Flame Propagation Characteristics of Coal Dust Explosion in Diagonal Structure Network

open access: yesChemical Engineering Transactions, 2018
In order to study the propagation characteristics of coal dust explosion in the angular branch, gambit software is used to establish a model of the pipe network and to divide the grid.
Baichao Song, Yucheng Li
doaj   +1 more source

Experimental and theoretical investigation of the flashback of a swirling, bluff-body stabilised, premixed flame [PDF]

open access: yes, 2015
Flashback of an open turbulent, premixed flame in a swirl burner with central bluff-body is considered. The aim is to obtain further understanding of the physical mechanisms responsible for the upstream flame propagation.
Christodoulou, Loizos   +3 more
core   +1 more source

Rotational effects in thermonuclear Type I Bursts: equatorial crossing and directionality of flame spreading [PDF]

open access: yes, 2015
In a previous study on thermonuclear (type I) nursts on accreting neutron stars we addressed and demonstrated the importance of the effects of rotation, through the Coriolis force, on the propagation of the burning flame.
Braithwaite, Jonathan   +3 more
core   +4 more sources

Effect of Temperature Conditions on Flame Evolutions of Turbulent Jet Ignition

open access: yesEnergies, 2021
Turbulent jet ignition technology can significantly improve lean combustion stability and suppress engine knocking. However, the narrow jet channel between the pre-chamber and the main chamber leads to some difficulties in heat exchange, which ...
Jiaying Pan   +5 more
doaj   +1 more source

Propagation of flame fronts [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1990
AbstractThe propagation of a flame front in a combusting gas is considered in the limit in which the width of the reaction-zone is small compared with some overall flow dimension. In this approximation, the front propagates along its normals at a speed dependent on the local curvature of the front and is governed by a nonlinear equivalent of the ...
openaire   +1 more source

Ignition and flame propagation in hydrogen-air layers from a geological nuclear waste repository: A preliminary study

open access: yesNuclear Engineering and Technology, 2022
In the geological repository of radioactive nuclear waste, anaerobic corrosion can generate hydrogen, and may conservatively lead to the production of hydrogen-air layer. The accumulated hydrogen may cause a hazardous flame propagation resulting from any
Je Ir Ryu   +3 more
doaj   +1 more source

Prediction of hydrogen flame propagation in a channel with exit contraction [PDF]

open access: yesE3S Web of Conferences, 2019
The propagation of a flame front in a homogeneous and initially quiescent hydrogen-air mixture in a channel with exit contraction is numerically analyzed by means of Computational Fluid Dynamics.
Cemal Benim Ali, Pfeiffelmann Björn
doaj   +1 more source

The Cellular Burning Regime in Type Ia Supernova Explosions - I. Flame Propagation into Quiescent Fuel

open access: yes, 2003
We present a numerical investigation of the cellular burning regime in Type Ia supernova explosions. This regime holds at small scales (i.e. below the Gibson scale), which are unresolved in large-scale Type Ia supernova simulations.
Hillebrandt, W.   +2 more
core   +2 more sources

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