Results 11 to 20 of about 44,661 (206)

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

Expansion Coefficients and Propagation Speeds of Premixed n-Butane–Air Flames

open access: yesEnergies, 2023
The propagation speeds of premixed n-butane–air mixtures (2.0–5.7 vol%) were investigated under various initial conditions (pressures of 0.4–1.2 bar; temperatures of 289–500 K). The study consists of both, experimental measurements using two different enclosures (a sphere and a cylinder) and kinetic modeling via a dedicated computing program.
Domnina Razus   +3 more
openaire   +2 more sources

Obstacle Impacts on Methane-Air Flame Propagation Properties in Straight Pipes

open access: yesFire, 2023
Accidental flame initiation to propagation in pipes carrying flammable gases is a significant safety concern that can potentially result in loss of life and substantial damage to property.
Mohammadreza Shirzaei   +2 more
doaj   +1 more source

Suppression of deflagration flame propagation of methane-air in tube by argon gas and explosion-eliminating chamber

open access: yesScientific Reports, 2022
To explore the inhibitory effect of argon gas and explosion-eliminating chamber on methane-air deflagration flame propagation in the tube, based on the Φ = 120 mm, L = 5.5 m stainless steel pipeline test system to measure methane-air deflagration flame ...
Quan Wang   +5 more
doaj   +1 more source

Effects of heat release on triple flames [PDF]

open access: yes, 1995
Heat release effects on laminar flame propagation in partially premixed flows are studied. Data for analysis are obtained from direct numerical simulations of a laminar mixing layer with a uniformly approaching velocity field.
Liñán Martínez, Amable   +2 more
core   +2 more sources

Effects of mixture fraction on edge-flame propagation speeds [PDF]

open access: yesProceedings of the Combustion Institute, 2017
Abstract The propagation speeds (Uedge) of nonpremixed edge-flames were measured as a function of stoichiometric mixture fraction (Zst) and global strain rate (σ) for several fuel/oxidant/diluent combinations using a counterflow slot-jet burner. It was found that for fuel Lewis number (Lef) ≈ 1 and oxidant Lewis number (Leo) ≈ 1 with fixed σ, Uedge ...
Hang Song   +6 more
openaire   +1 more source

Study on Influence of Cavity and Water Mist on Flame Propagation of Gas Explosion in a Pipeline

open access: yesGeofluids, 2021
For studying the influence of the cavity and water mist on the flame propagation of gas explosion, a rectangular steel cavity of size of length 80 cm×width 50 cm×height 20 cm was designed.
Shicheng Gu   +3 more
doaj   +1 more source

Small-scale Interaction of Turbulence with Thermonuclear Flames in Type Ia Supernovae [PDF]

open access: yes, 1999
Microscopic turbulence-flame interactions of thermonuclear fusion flames occuring in Type Ia Supernovae were studied by means of incompressible direct numerical simulations with a highly simplified flame description.
Eswaran V.   +7 more
core   +3 more sources

Flame Propagation on the Surfaces of Rapidly Rotating Neutron Stars during Type I X-ray Bursts [PDF]

open access: yes, 2013
We present the first vertically resolved hydrodynamic simulations of a laterally propagating, deflagrating flame in the thin helium ocean of a rotating accreting neutron star.
Braithwaite, Jonathan   +3 more
core   +3 more sources

Turbulent flame propagation and combustion in spark ignition engines [PDF]

open access: yes, 1983
Pressure measurements synchronized with high-speed motion picture records of flame propagation have been made in a transparent piston engine. The data show that the initial expansion speed of the flame front is close to that of a laminar flame.
BERETTA, Gian Paolo   +2 more
core   +1 more source

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