To investigate the internal structure of flame front, the time dependent conservation equations of a laminar flat flame were solved by finite difference method.
1) investigated the effects of input parameters (diffusivity, reaction constant, chemical reaction mechanism) on the structure of flame,
2) altered the flame conditions (initial mixture composition, pressure) to see how many changes occur
Burning velocities calculated with original reaction constant were a little higher than experimental values. Some modifications in reaction constant made calculated results be in good agreement with experimental results.
Although reliable results can be obtained only after input parameters are established by experimental measurement, many features of flame front can be observed by the present method.
With some extension, this numerical scheme can be used to study the combustion reaction of hydrocarbon fuels which are practically important and much more complex in molecular structure than hydrogen.