Turbulence and Molecular Processes in Combustion

An understanding of the intricacies in the turbulent combustion process may be a key to solving many of the current energy and environmental problems. The essential nature of turbulent combustion can be derived from the interaction between stochastic flow fluctuations and deterministic molecular processes, such as chemical reaction and transport processes. Undoubtedly, this is one of the most challenging fields of engineering science today, requiring as it does the interaction of scientists and engineers in the respective fields of chemical kinetics and fluid mechanics. The 28 papers in this volume review recent advances in these two disciplines providing new insights into the fundamental processes, addressing a great deal of recent progress. This progress ranges from descriptions of elementary chemical kinetics, to working those descriptions into combustion calculations with large numbers of elementary steps, to improved understanding of turbulent reacting flows and advances in simulations of turbulent combustion. The contributions will inspire further research on many fronts, advancing the understanding of combustion processes, as well as fostering a growing interdisciplinary cooperation.

Turbulent Combustion: Theory and Modelling. Advances in modeling of turbulent combustion (F.A. Williams). Theory and modeling of premixed turbulent combustion (V. Yakhot). Molecular and turbulent transports competing in premixed flames (S. Tsuge, S. Ogawa). PDF/Monte Carlo methods for turbulent combustion and their implementation on parallel computers (S.B. Pope). Elementary Reactions I. Rationalizing rate data of elementary dissociation and recombination reactions in combustion (J. Troe). Reaction rates of atomic oxygen [3P] with a series of alkanes at high temperatures (A. Miyoshi et al.). Reactions of CH2 and CH with N2 and CH with NO (J.W. Bozzelli et al.). Elementary Reactions II. Thermal dissociation studies of toluene at high temperatures (R.D. Kern et al.). Kinetics of the oxidation of SiH3 radicals (M. Koshi et al.). High temperature oxidation of soot particles by O, OH and NO (P. Roth, S. von Gersum). Rate constants of several free radical reactions measured by a photoionization mass spectrometer (N. Washida). Kinetics and Modelling. Detailed chemistry of hydrocarbon combustion and its coupling with flow processes (J. Warnatz). Acceleration of combustion and related reactions by addition of reactive species (S. Koda). Pulsed jet ignition modeling with a full chemistry (A.K. Hayashi, M. Hishida). Laser measurement of chemically reactive intermediates in combustion (D.R. Crosley). A deficiency in a current kinetic modelling of autoignition in swirl flow (S. Kojima). Role of some specific elementary processes on combustion phenomena (P.J. Van Tiggelen). Turbulent Combustion: Experiment and Modeling. Conditional moment closure modeling and advanced laser measurements (R.W. Bilger). High-resolution measurements of molecular transport and reaction processes in turbulent combustion (W.J.A. Dahm, E.S. Bish). Measurement and computation of differential molecular diffusion in a turbulent jet (R.W. Dibble et al.). Intrinsic transport and chemistry coupling in combustion phenomena (C.K. Law et al.). Experimental study on the extinction of a wrinkled laminar flame formed in a stagnation point flow (T. Ueda et al.). Effect of turbulence on NOx formation in premixed turbulent flames (A. Yoshida et al.). Turbulent Combustion: Modeling and Simulation. Premixed turbulent combustion in a counterflow geometry (K.N.C. Bray). Prediction of NOx emission index of turbulent diffusion flame (T. Takeno et al.). Effects of preferential diffusion of heat and species in diffusion flames (T. Takagi, Z. Xu). 3-Dimensional vortex structures and their dynamics in several chemically- nonreacting / reacting turbulent flowfields (T. Fujiwara). Flow simulation on supercomputers and its visualization (K. Kuwahara).