volume 158, issue 5, P885-892 2011
DOI: 10.1016/j.combustflame.2011.01.017
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Abstract: ABSTRACT Keywords: Laminar flames Lean flammability limit Flame aerodynamicsUpward propagation of a premixed flame in a vertical tube filled with a very lean mixture is simulated numerically using a single irreversible Arrhenius reaction model with infinitely high activation energy. In the absence of heat losses and preferential diffusion effects, a curved flame with stationary shape and velocity close to those of an open bubble ascending in the same tube is found for values of the fuel mass fraction above a …

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