Numéro |
J. Phys. IV France
Volume 12, Numéro 7, August 2002
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Page(s) | 3 - 10 | |
DOI | https://doi.org/10.1051/jp4:20020261 |
J. Phys. IV France 12 (2002) Pr7-3
DOI: 10.1051/jp4:20020261
Flame acceleration and DDT in gas explosions
S.B. DorofeevForschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe, Germany
Abstract
A qualitative description of flame acceleration (FA) process is presented, which shows a complexity of
the processes that can follow a weak ignition in a combustible mixture. Considering the exclusive role of the
confinement and obstructions, the main focus is made on the processes of FA and DDT typical for areas with strong
confinement and heavy obstructions. Main characteristic combustion regimes are described as well as possible
routes for development of FA processes. A framework of ideas and criteria that can be used to evaluate initial and
boundary conditions under which FA and DDT may be possible is presented. Limitations and uncertainties of these
criteria are discussed.
© EDP Sciences 2002