Reduced Kinetic Mechanisms and Asymptotic Approximations for Methane-Air Flames: A Topical Volume

Mitchell D. Smoke, Vincent Giovangigli (auth.), Mitchell D. Smooke (eds.)3540542108, 9783540542100, 0387542108

In this comprehensive text a systematic numerical and analytical treatment of the procedures for reducing complicated systems to a simplified reaction mechanism is presented. The results of applying the reduced reaction mechanism to a one-dimensional laminar flame are discussed. A set of premixed and non-premixed methane-air flames with simplified transport and skeletal chemistry are employed as test problems that are used later on to evaluate the results and assumptions in reduced reaction networks. The first four chapters form a short tutorial on the procedures used in formulating the test problems and in reducing reaction mechanisms by applying steady-state and partial-equilibrium approximations. The final six chapters discuss various aspects of the reduced chemistry problem for premixed and nonpremixed combustion.

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Table of contents :
Formulation of the premixed and nonpremixed test problems….Pages 1-28
Premixed and nonpremixed test problem results….Pages 29-47
Reducing mechanisms….Pages 48-67
Overview of asymptotics for methane flames….Pages 68-85
On reduced mechanisms for methane-air combustion….Pages 86-110
Structure of the oxidation layer for stoichiometric and lean methane-air flames….Pages 111-136
Asymptotic analysis of methane-air diffusion flames….Pages 137-158
Sensitivity analysis of laminar premixed CH 4 -air flames using full and reduced kinetic mechanisms….Pages 159-192
Application of reduced chemical mechanisms for prediction of turbulent nonpremixed methane jet flames….Pages 193-226
Conventional asymptotics and computational singular perturbation for simplified kinetics modelling….Pages 227-242