Numéro |
J. Phys. IV France
Volume 12, Numéro 7, August 2002
|
|
---|---|---|
Page(s) | 265 - 271 | |
DOI | https://doi.org/10.1051/jp4:20020293 |
J. Phys. IV France 12 (2002) Pr7-265
DOI: 10.1051/jp4:20020293
Influence of mixture composition on the oscillatory behaviour of flames propagating from the closed end toward the open end of smooth horizontal tubes
B. Veyssière1, M. Arrigoni1 and S. Kerampran21 Laboratoire de Combustion et de Détonique, UPR 9028 du CNRS, Université de Poitiers, ENSMA, Téléport 2, 1 avenue Clément Ader, BP. 40109, 86961 Futuroscope-Chasseneuil cedex, France
2 Département de Mécanique des Fluides, ENSIETA, Brest, France
Abstract
Experimental study of the oscillatory behaviour of flames propagating from the closed end
toward the open end of smooth horizontal tubes show that this behaviour is governed by the initial
value of the laminar flame speed V (
, where
is the expansion ratio of
gases and S the laminar burning velocity). Experiments were performed in three stoichiometric
mixtures of propane,
ethylene or acetylene with oxygen diluted with nitrogen in different proportions so that the initial
value of V is of the same order of magnitude for the different mixtures (~3 m/s). Flame is observed to
have an oscillatory behaviour with similar characteristics during its propagation in the three mixtures.
© EDP Sciences 2002