Structure of Diffusion and Premixed Laminar Counterflow Flames Including Molecular Radiativa Transfer
Т. Daguse, A. Soufiani, N. Darabiha, J. С. Rolon
Laboratoire d'Energetique Moleculaire et Macroscopique,
Combustion du CNRS et de VECP, Ecole Centrale Paris
Grande Voie des Vignes, 92295 Chatenay-Malabry, France
Страницы: 55-60
Аннотация
The interaction between radiation and combustion is studied theoretically in the case of strained counterflow nonluininous laminar flames. Both H2 – 02 diffusion and C3H8 – air premixed flames are considered. Calculations are based on detailed chemical kinetics and narrow-band statistical modeling of infrared radiative properties. It is shown that radiative transfer decreases the temperature level, which affects particularly the production and consumption of minor species and pollutants. For H2 – 02 flames, a low strain rate extinction limit due to radiation is found. It is also shown that the commonly used approximation of optically thin medium is inaccurate, even for the small scale laboratory flames considered here.
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