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Theory of premixed-flame propagation in large-scale turbulence

✍ Scribed by Clavin, P.; Williams, F. A.


Book ID
120109642
Publisher
Cambridge University Press
Year
1979
Tongue
English
Weight
347 KB
Volume
90
Category
Article
ISSN
0022-1120

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✍ R.C. Aldredge πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 712 KB

The propagation of a premixed flame through a large-scale vortical flow field is studied numerically by solving a front propagation equation governing the evolution of a scalar field whose zero-level surface defines the location of a self-propagating interface. The flame front is considered to propa

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A scaling law is proposed that gives the steady-state turbulent flame velocity in the regime where the flame is thin compared with the largest scale of the turbulence, diffusion effects are small compared to the fluid dynamics effects, and the turbulence is driven by the Rayleigh-Taylor instability

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✍ R.G. Abdel-Gayed; Derek Bradley πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 444 KB

The limited experimental data on the turbulent quenching of premixed flames have been scrutinized in the light of our theoretical understanding of the role of flame straining at different Lewis numbers, Le. Somewhat diffidently, two regimes are proposed to define flame quenching: 1l I -->~0.71RL Β°.~