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The steady planar propagation of premixed flames subjected to heat losses is a classical problem. In the context of the activation energy asymptotic method, the general result of these studies is that the flame propagation velocity is a two-valuated function of the heat loss intensity; this is lower than some critical value after which no steady solution exists. The unsteady head-on quenching of a flame front has attracted much less attention, in spite of its undoubtedly more practical interest. In the present work, this problem is formulated in terms of activation energy asymptotics and a numerically explicit method is developed to solve the leading order, with the thin reaction zone being replaced by jump conditions in the temperature and concentration profiles.

Additional information

Authors: ANTORANZ J C, UNED, Departamento de Física Fundamental, Madrid (ES);GARCIA-YBARRA P L, UNED, Departamento de Física Fundamental, Madrid (ES)
Bibliographic Reference: Paper presented: International Workshop on Mathematics in Laminar and Turbulent Combustion, Santiago de Compostela (ES), July 29-31, 1993
Availability: Available from (1) as Paper EN 37755 ORA
Record Number: 199311185 / Last updated on: 1994-11-29
Original language: en
Available languages: en
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