Numerical simulation of detonation initiation in a flame brush: the role of hot spots

AM Khokhlov, ES Oran - Combustion and Flame, 1999 - Elsevier
flame brush and the reflected shock. For the highest Mach numbers, DDT occurred inside the
flame brush… call the region in and near the flame a “turbulent flame brush.” At this point, the …

Observations of the emergence of detonation from a turbulent flame brush

G Thomas, R Bambrey - Proceedings of the Combustion Institute, 2002 - Elsevier
… of detonation could not be observed in any detail. A summary of other tests attempting
initiation of detonation … One experimental approach that gave reproducible onset of detonation

Deflagrations, hot spots, and the transition to detonation

ES Oran, AM Khokhlov - … of the Royal Society of London …, 1999 - royalsocietypublishing.org
… in hot spots formed a shock with a flame left behind it. As the … from outside the flame brush
to inside the flame brush. The … simulation of detonation initiation in a flame brush: the role of …

Detonation initiation and shock-flame interaction in hydrogen-air mixtures

B Taylor, R Houim, D Kessler, V Gamezo… - 51st AIAA Aerospace …, 2013 - arc.aiaa.org
flame brush, and eventually the compressed material between the shock and the turbulent
flame brush ignited and formed a detonation. … two mechanisms of detonation initiation: direct …

An experimental investigation of the onset of detonation

J Chao, T Otsuka, JHS Lee - Proceedings of the Combustion Institute, 2005 - Elsevier
… that are required at the turbulent flame brush during the onset of detonation. An attempt is
made … In comparison to previous investigations on detonation initiation via turbulent mixing, the …

Numerical simulation of flame acceleration and deflagration to detonation transition in hydrogen-air mixture

A Heidari, JX Wen - International Journal of Hydrogen Energy, 2014 - Elsevier
… shock-flame interactions and formation of hot spots leading in onset of detonation in the flame
brush. … Numerical simulation of detonation initiation in a flame brush: the role of hot spots …

Flame propagation and detonation initiation distance of ethylene/oxygen in narrow gap

J Li, P Zhang, L Yuan, Z Pan, Y Zhu - Applied Thermal Engineering, 2017 - Elsevier
… In this paper, the variable law of the stable detonation wave initiation distance was mainly
… Therefore, overdriven detonation trajectory line similar to “flame brush” appears entry at the …

Flame acceleration and transition from deflagration to detonation in hydrogen explosions

A Heidari, JX Wen - International journal of hydrogen energy, 2014 - Elsevier
… the surface area of the flame, which increased the subsequent … –flame interaction was not
enough to create a flame brush … Numerical simulation of detonation initiation in a flame brush

Numerical simulation of deflagration-to-detonation transition via shock–multiple flame kernels interactions

G Bakalis, KC Tang-Yuk, X Mi, N Nikiforakis… - … & Mathematics with …, 2021 - Elsevier
flame surface, referred to as the flame brush, until eventually a hot spot ignition in the unreacted
material develops into a multi-headed detonation … This method of detonation initiation

[HTML][HTML] Chemical phenomena associated with the initiation of thermal explosions

TB Brill, PJ Brush - … Symposium (International) on Detonation, 1989 - books.google.com
A microscale experiment is described to study the initiation of thermal explosions by
simultaneously measuring the time-to-exotherm with thermocouples and the gas products evolved …