volume 156, issue 5, P1006-1013 2009
DOI: 10.1016/j.combustflame.2008.12.005
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Abstract: An experimental study was performed to determine the requirements for sustained propagation of sparkignited hydrogen-air and butane-air flames at atmospheric and elevated pressures. Results show that sustained propagation is always possible for mixtures whose Lewis number is less than unity, as long as a flame can be initially established. However, for mixtures whose Lewis number is greater than unity, sustained propagation depends on whether the initially ignited flame can attain a minimum radius. This minim…

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