2007.87: Flame propagation in a nonuniform mixture: analysis of a slowly varying triple flame
2007.87: J W Dold (1989) Flame propagation in a nonuniform mixture: analysis of a slowly varying triple flame. Combustion and Flame, 76. pp. 71-88.
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Abstract
For flames propagating through a nonuniform medium a three-flame structure is described. This consists of a feul-rich premixed flame, a feul-lean premixed flame, and, starting where these flames meet, a diffusion flame. Such formations have been observed experimentally and probably occur as laminar flamelets in turbulent diffusion flames. A low-heat-release model for such flame structures is developed and solutions are obtained in the limit of slowly varying premixed flames. Under these conditions, it is shown that the Triple-Flame propagation speed depends on the transverse mixture fraction gradient and is bounded from above by the maximum adiabatic laminar flame speed of the system.
| Item Type: | Article |
|---|---|
| Subjects: | MSC 2000 > 35 Partial differential equations MSC 2000 > 41 Approximations and expansions PACS 2003 > 82 Physical chemistry and chemical physics molecular physics |
| MIMS number: | 2007.87 |
| Deposited By: | Prof John Dold |
| Deposited On: | 23 May 2007 |
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