Comparison between experimental measurements and numerical calculations of the structure of counterflow, diluted, methane-air, premixed flames

In this paper we investigate experimentally and numerically the structure and extinction of counterflow methane-air flames in the fresh reactant-hot product configuration. The flame is formed in the neighborhood of the stagnation point produced by the counterflow of fresh mixture and hot combustion products. Temperature and species profiles are measured using radiatively corrected thermocouple measurements together with a quartz microproble and a gas chromatograph. The governing conservation equations are solved numerically by employing adaptive continuation techniques. The model includes detailed transport and complex kinetics.