期刊
FLOW TURBULENCE AND COMBUSTION
卷 101, 期 3, 页码 851-868出版社
SPRINGER
DOI: 10.1007/s10494-018-9940-4
关键词
Premixed flames; Darrieus-Landau instability; Hele-Shaw burner
资金
- French National Research Agency [ANR-14-CE05-0006]
- Excellence Initiative of Aix-Marseille University - A*MIDEX, a French Investissements d'Avenir program
We show in this paper that a Hele-Shaw burner can be used for studying the development of premixed flame instabilities in a quasi-two dimensional configuration. It is possible to ignite a plane flame at the top of the cell, and to measure quantitatively the growth rates of the instability by image analysis. Experiments are performed with propane and methane-air mixtures. It is found that the most unstable wavelength, and the maximum linear growth rate of perturbations, directly measured in the present experiments, have the same order of magnitude as those previously measured on flames propagating freely downwards in wide tubes.
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