Flame acceleration and transition to detonation in ducts

G Ciccarelli, S Dorofeev - Progress in energy and combustion science, 2008 - Elsevier
This paper reviews the state of knowledge on flame acceleration and deflagration-to-
detonation transition (DDT) in smooth ducts and ducts equipped with turbulence-producing …

Premixed flame propagation in hydrogen explosions

H Xiao, Q Duan, J Sun - Renewable and Sustainable Energy Reviews, 2018 - Elsevier
Hydrogen as an energy carrier is a very promising alternative fuel in the future. Accidental
hydrogen explosions remain one of the major concerns in hydrogen energy utilization and …

Effect of scale on the onset of detonations

SB Dorofeev, VP Sidorov, MS Kuznetsov, ID Matsukov… - Shock Waves, 2000 - Springer
Critical conditions for onset of detonations are compared at (1) two significantly different
scales,(2) for a range of \rmH_2-air mixtures diluted with C \rmO_2, \rmH_2 O, and (3) for two …

Modeling of non-homogeneous premixed hydrogen-air flame acceleration and deflagration to detonation transition in an obstructed channel

Z Sheng, G Yang, W Gao, S Li, Q Shen… - International Journal of …, 2024 - Elsevier
Abstract This paper uses Large Eddy Simulation (LES) technology to study the dynamic
behavior of flame acceleration (FA) and deflagration-to-detonation transition (DDT) in a duct …

[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 onset of detonation in inhomogeneous mixture of hydrogen-air in an obstructed channel

X Zhao, J Wang, L Gao, X Wang, Y Zhu - Aerospace Science and …, 2022 - Elsevier
Flame acceleration (FA) and deflagration-to-detonation transition (DDT) in combustible
premixed gases is a complex process involving the flow and combustion phenomena …

Longitudinal pulsed detonation instability in a rotating detonation combustor

V Anand, AS George, R Driscoll, E Gutmark - Experimental Thermal and …, 2016 - Elsevier
The peculiar phenomenon of longitudinal pulsed detonation (LPD) in a rotating detonation
combustor (RDC) is studied using hydrogen–air mixtures, by utilizing:(i) two air injection …

Influences of concentration gradients and ignition positions on unconfined inhomogeneous hydrogen explosion

Z Yang, Z Wang, X Cao, B Chen, R Fan, Y Lu - International Journal of …, 2024 - Elsevier
This work aims at investigating the inhomogeneous hydrogen cloud explosion in unconfined
spaces. The influences of concentration gradient and ignition position on the explosion were …

Deflagration-to-detonation transition in hydrogen/air mixtures with a concentration gradient

KG Vollmer, F Ettner, T Sattelmayer - Combustion Science and …, 2012 - Taylor & Francis
The hazardous potential of hydrogen/air mixtures has intensively been studied assuming a
perfect mixture of fuel and oxidant. However, comprehensive risk assessment studies have …

Effect of hydrogen concentration distribution on flame acceleration and deflagration-to-detonation transition in staggered obstacle-laden channel

X Zhao, J Wang, L Gao, J Pan, Y Zhu - Physics of Fluids, 2023 - pubs.aip.org
A staggered arrangement of solid obstacles promotes flame acceleration (FA) and the
deflagration-to-detonation transition (DDT) in a homogeneous concentration field. Many …