2-Dimensional Linear-Stability of Premixed Laminar Flames Under Zero-Gravity

Mukunda, HS and Drummond, JP (1993) 2-Dimensional Linear-Stability of Premixed Laminar Flames Under Zero-Gravity. In: Applied Scientific Research, 51 (4). pp. 687-711.

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Abstract

This paper reports on the numerical study of the linear stability of laminar premixed flames under zero gravity. The study specifically addresses the dependence of stability on finite rate chemistry with low activation energy and variable thermodynamic and transport properties. The calculations show that activation energy and details of chemistry play a minor role in altering the linear neutral stability results from asymptotic analysis. Variable specific heat makes a marginal change to the stability. Variable transport properties on the other hand tend to substantially enhance the stability from critical wave number of about 0.5 to 0.20. Also, it appears that the effects of variable properties tend to nullify the effects of non-unity Lewis number. When the Lewis number of a single species is different from unity, as will happen in a hydrogen-air premixed flame, the stability results remain close to that of unity Lewis number.

Item Type:	Journal Article
Publication:	Applied Scientific Research
Publisher:	Kluwer Academic Publ
Additional Information:	Copyright of this article belongs to Kluwer Academic Publ.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	31 Jan 2011 07:34
Last Modified:	31 Jan 2011 07:34
URI:	http://eprints.iisc.ac.in/id/eprint/35260

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