Results 41 to 50 of about 47,191 (297)

Detonation initiation in a channel via facing injection of flame jets

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Detonation transition was experimentally investigated using flame jetting through the orifice of a small sub-chamber, which was equipped on the side wall near the closed end of the main channel (square inner closs section, 50 mm on a side) filled with a ...
Shinichi MAEDA   +3 more
doaj   +1 more source

Premixed Propane–Air Flame Propagation in a Narrow Channel with Obstacles

open access: yesEnergies, 2023
Flame interaction with obstacles can affect significantly its behavior due to flame front wrinkling, changes in the flame front surface area, and momentum and heat losses.
Sergey Yakush   +2 more
doaj   +1 more source

Propagation of the First Flames in Type Ia Supernovae [PDF]

open access: yes, 2006
We consider the competition of the different physical processes that can affect the evolution of a flame bubble in a Type Ia supernovae -- burning, turbulence and buoyancy.
Bychkov V. V.   +4 more
core   +4 more sources

Characteristics of diffusion flames with accelerated motion

open access: yesThermal Science, 2016
The aim of this work is to present an experiment to study the characteristics of a laminar diffusion flame under acceleration. A Bunsen burner (nozzle diameter 8 mm), using liquefied petroleum gas as its fuel, was ignited under acceleration.
Bo Lou, Yonghai Qiu, Jianhong Xu
openaire   +2 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Mechanism of Spontaneous Acceleration of Slow Flame in Channel

open access: yesFire
This paper is devoted to the numerical analysis of the spontaneous acceleration of a slow flame in a semi-closed channel. In particular, the flow development in the channel ahead of the propagating flame is analyzed.
Andrey Yarkov   +2 more
doaj   +1 more source

Dynamic behavior and flame acceleration of outwardly expanding flame in hydrogen-air mixture

open access: yesNihon Kikai Gakkai ronbunshu, 2016
From the perspective of safety, it is necessary to assess the risk of hydrogen-air deflagration accurately. Especially, flame propagation velocity is one of the most important factors.
Toshiyuki KATSUMI   +3 more
doaj   +1 more source

Fluid Dynamic Aspects Of Room Fires [PDF]

open access: yes, 1986
Several fluid dynamic processes which play important roles in the development of accidental fires in structures are discussed. They include a review of information concerning the characteristic flow regimes of fire plumes and the properties of the flow ...
E. Zukoski, Kubota, Zukoski
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Computational Study of Deflagration-to-Detonation Transition in a Semi-Confined Slit Combustor

open access: yesEnergies, 2023
Systematic three-dimensional numerical simulations of flame acceleration and deflagration-to-detonation transition (DDT) in a semi-confined flat slit combustor are performed.
Vladislav S. Ivanov   +2 more
doaj   +1 more source

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