[HTML][HTML] Recent advances in combustion science related to hydrogen safety

JX Wen, ES Hecht, R Mevel - Progress in Energy and Combustion Science, 2025‏ - Elsevier
Hydrogen is a key pillar in the global Net Zero strategy. Rapid scaling up of hydrogen
production, transport, distribution and utilization is expected. This entails that hydrogen …

Flame acceleration and detonation onset in narrow channels: simultaneous schlieren visualization

Y Ballossier, F Virot, J Melguizo-Gavilanes - Combustion and Flame, 2023‏ - Elsevier
Abstract Deflagration-to-detonation-transition (DDT) experiments were performed in a fully
optically accessible smooth narrow channel using simultaneous schlieren visualization …

Flame acceleration in channels with obstacles in the deflagration-to-detonation transition

D Valiev, V Bychkov, V Akkerman, CK Law… - Combustion and …, 2010‏ - Elsevier
It was demonstrated recently in Bychkov et al.[Bychkov et al., Phys. Rev. Lett. 101 (2008)
164501], that the physical mechanism of flame acceleration in channels with obstacles is …

Influence of gas compression on flame acceleration in the early stage of burning in tubes

DM Valiev, V Akkerman, M Kuznetsov, LE Eriksson… - Combustion and …, 2013‏ - Elsevier
The mechanism of finger flame acceleration at the early stage of burning in tubes was
studied experimentally by Clanet and Searby [Combust. Flame 105 (1996) 225] for slow …

Flame front dynamics, shape and structure on acceleration and deflagration-to-detonation transition

P Krivosheyev, A Novitski, O Penyazkov - Acta Astronautica, 2023‏ - Elsevier
Develo** a new generation of rocket engines based on detonation principles needs
methods which ensure stability of operation including the onset of detonation wave after mild …

Analysis of the final stage of flame acceleration and the onset of detonation in a cylindrical tube using high-speed stereoscopic imaging

P Krivosheyev, O Penyazkov, A Sakalou - Combustion and Flame, 2020‏ - Elsevier
The three-dimensional structure of an accelerating flame front makes it very difficult to
visualize. Most experimental studies that provided a visualization of flame acceleration and …

Different stages of flame acceleration from slow burning to Chapman-Jouguet deflagration

DM Valiev, V Bychkov, V Akkerman, LE Eriksson - Physical Review E …, 2009‏ - APS
Numerical simulations of spontaneous flame acceleration are performed within the problem
of flame transition to detonation in two-dimensional channels. The acceleration is studied in …

Influence of chemical kinetics on spontaneous waves and detonation initiation in highly reactive and low reactive mixtures

M Liberman, C Wang, C Qian, JN Liu - Combustion Theory and …, 2019‏ - Taylor & Francis
Understanding the mechanisms of explosions is important for minimising devastating
hazards. Due to the complexity of real chemistry, a single-step reaction mechanism is …

[HTML][HTML] Critical role of blockage ratio for flame acceleration in channels with tightly spaced obstacles

OJ Ugarte, V Bychkov, J Sadek, D Valiev - Physics of Fluids, 2016‏ - pubs.aip.org
A conceptually laminar mechanism of extremely fast flame acceleration in obstructed
channels, identified by Bychkov et al.[“Physical mechanism of ultrafast flame acceleration,” …

Quasi-steady stages in the process of premixed flame acceleration in narrow channels

DM Valiev, V Bychkov, V Akkerman, LE Eriksson… - Physics of …, 2013‏ - pubs.aip.org
The present paper addresses the phenomenon of spontaneous acceleration of a premixed
flame front propagating in micro-channels, with subsequent deflagration-to-detonation …