期刊
COMBUSTION AND FLAME
卷 162, 期 4, 页码 1225-1233出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.combustflame.2014.10.010
关键词
Premixed flame speed; Front dynamics; Instabilities; Nonlinearity; Darrieus-Landau instability
类别
资金
- French CNRS
- Aix-Marseille University - France
This paper reports an experimental investigation of premixed propane and methane-air flames propagating freely downwards in tubes 1.5 m long and with diameters 54 and 94 mm. The tubes are opened at the upper end and closed at the bottom end with an acoustic damper that eliminates thermo-acoustic instability. Igniting the flame either on the tube axis or close to the wall, two regimes of propagation are distinguished by correlating the flame speed and the radius of curvature at the flame tip. The characteristic lengths are then related to the cut-off wavelengths estimated from linear theories and compared to previous results of Michelson-Sivashinsky simulations. (C) 2014 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据