A Study of a Flame in the Boundary Layer on a Porous Flat Plate

Abstract

A two-dimensional flame in a boundary layer with uniform injection of propane gas from a porous flat plate parallel to a uniform air stream is treated in this study. The positions of the beginning of the flame in both directions parallel and normal to the plate are considered to be one of the most important factors for the stabilization of such a flame. In order to justify the experimental results of the positions, an analysis of both the mass balance at the flame sheet and the mass balance at the surface of the plate is briefly carried out by local similarity method and an experimental equation of an air stream-velocity. The influences of injection rate, mass flux of an air stream and the surface temperature of the plate on the positions are discussed qualitatively.