Turbulent combustion of hydrogen-CO mixtures

Alexey A. Burluka, Ahmed M.T. El-Dein Hussin, Christopher G.W. Sheppard, Kexin Liu, Victoria Sanderson

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Laminar and turbulent burning velocities were measured in a closed-volume fan-stirred vessel for H2-CO mixtures using two independent methods of flame definition. It has been shown that the unsteady flame development is an important factor and it needs to be taken into account for comparison of the burning rates obtained in different experiments. For the atmospheric pressure flames, the mixtures with faster laminar flame velocities burnt faster in turbulent flow despite the fact that the lean flames exhibit cellular structures. However, even a modest increase of the initial pressure promotes strongly cellularity and causes a significant acceleration of a lean laminar flame. The same lean flame burns faster in turbulent flow as well and this increase in the rate of combustion is greater that can be deduced from variation of the molecular heat diffusivity and laminar flame speed.

Original languageEnglish
Pages (from-to)735-749
Number of pages15
JournalFlow, Turbulence and Combustion
Volume86
Issue number3-4
Early online date13 Mar 2011
DOIs
Publication statusPublished - 1 Apr 2011

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