[PDF][PDF] 2D and 3D flame surface analysis of flame acceleration and deflagration-to-detonation transition in hydrogenair mixtures with concentration gradients

J Hasslberger, F Ettner, LR Boeck, T Sattelmayer - ICDERS, 2013 - icders.org
… Thus, the orientation of obstacles (which are necessary to promote flame … of flame surface
analysis to identify the relevant differences. To study the DDT (deflagration-to-detonation tran…

Hydrogen–oxygen flame acceleration and deflagration-to-detonation transition in three-dimensional rectangular channels with no-slip walls

MF Ivanov, AD Kiverin, IS Yakovenko… - International journal of …, 2013 - Elsevier
… The three dimensional modeling of the flame acceleration and … of deflagration-to-detonation
transition, which was proposed … To analyze the influence of flame surface topology the …

Experimental observations of flame acceleration and transition to detonation following shock-flame interaction

G Thomas, R Bambrey, C Brown - Combustion Theory and …, 2001 - iopscience.iop.org
… Although a steady-state analysis, the necessary increase in final combustion pressure with
lead shock velocity is shown clearly. A consequence of this analysis is that for a given flame

Flame acceleration and transition from deflagration to detonation in hydrogen explosions

A Heidari, JX Wen - International journal of hydrogen energy, 2014 - Elsevier
… are developed for explosion modelling and hazards analysis in … flame acceleration and
deflagration to detonation transition (DDT… between two approaches to detonation modelling. The …

Numerical simulation of deflagration-to-detonation transition: the role of shock–flame interactions in turbulent flames

AM Khokhlov, ES Oran, GO Thomas - Combustion and flame, 1999 - Elsevier
flames create the conditions under which deflagration-to-detonation transition may occur. …
Deflagration-to-detonation transition (DDT) is an extremely complex process involving …

Theoretical analysis on deflagration-to-detonation transition

YF Liu, H Shen, DL Zhang, ZL Jiang - Chinese Physics B, 2018 - iopscience.iop.org
… is analyzed in this paper. The structure of the deflagration wave is a leading shock wave (SW)
followed by a flame surface… into three regions by the SW and flame surface. Region 1 is the …

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

P Krivosheyev, A Novitski, O Penyazkov - Acta Astronautica, 2023 - Elsevier
… the transition processes associated with flame acceleration and the onset of a detonation mode
are … Flame dynamic analysis allows to draw the following general conclusions. Before the …

Flame acceleration and deflagration-to-detonation transition in hydrogen-air mixture in a channel with an array of obstacles of different shapes

H Xiao, ES Oran - Combustion and Flame, 2020 - Elsevier
… Circular obstacles produce the weakest flame-surface growth, and thus they have the least
effect on promoting flame acceleration and transition to detonation. A closer analysis shows …

Formation of the preheated zone ahead of a propagating flame and the mechanism underlying the deflagration-to-detonation transition

MA Liberman, M Kuznetsov, A Ivanov, I Matsukov - Physics Letters A, 2009 - Elsevier
… We present theoretical analysis and experimental … -to-detonation transition exhibits three
separate stages of evolution corroborating majority experimental observations: (1) the flame

Simulations of flame acceleration and deflagration-to-detonation transitions in methane–air systems

DA Kessler, VN Gamezo, ES Oran - Combustion and Flame, 2010 - Elsevier
… enough to simulate the transition of a low-speed flame to a detonation wave in a large, … of
laminar flames and detonations. In the remainder of this paper, we describe and analyze the …