LAMINAR FLAME THEORY .3.

We present the final part of the laminar flame theory based on the not ion of the minimum entropy production in weakly nonequilibrium systems . A correction has been made to the Zel'dovich-Frank Kamenetskii-Landa u formula for the laminar flame velocity at large Lewis numbers. If th e flame velocity calculated in this work corresponds to the stable reg ime of front propagation, the problem under consideration is analogous to the Kolmogorov-Petrovskii-Piskunov problem. With sufficiently high reaction orders, the width of a thermally diffusive boundary layer in creases by a logarithmic law.