A SPECIAL SINGULAR PERTURBATION METHOD FOR KINETIC MODEL REDUCTION - WITH APPLICATION TO AN H-2/O-2 OXIDATION MODEL

摘要

An evolution of a homogeneous chemical reaction system is described by a set of nonlinear ordinary differential equations. When the evolution occurs on different time scales, a special singular perturbation method may be employed to extract the equations for the slow evolution. The resultant equations have a quite simple form and retain high accuracy in the solutions. For illustration, an H-2/O-2 oxidation model is treated by this method. A general reduced model containing no radicals has been obtained, which can be applied to a wide range of initial conditions and has very good accuracy for the temperature and all the species. (C) 1996 American Institute of Physics. [References: 9]