Modelling of the gas combustion process

This paper reports on a procedure which leads to the assessment of the K_G values without the need of determining the maximal rate of pressure rise by experiments. A simulation is proposed of the combustion process in its simplest form, i.e. one-dimensional propagation of the flame. Such simulation enables the burning velocity S_u to be assessed. Knowing the S_u values for different compositions of the flammable mixture makes it possible to determine the S_{u, max} value. Once the correlation between S_u,max and K_G has been established, this will enable us to assign an appropriate value of K_G to that of the maximal burning velocity. An example of such a correlation is given. It refers to flammable mixtures of a comparatively low burning velocity.