Computing Chemical Kinetics With Low-Dimensional Manifolds

A method of computing the concentrations of chemical species in chemically reacting flows includes, among other things, utilization of a prior chemical-kinetic method based on a concept of intrinsic low-dimensional manifolds (ILDM) in composition space. The present method is particularly suitable for predicting concentrations of nitrogen oxides (NOx) generated in the combustion of hydrocarbon fuels in flows simulated by techniques of computational fluid dynamics (CFD).