Dynamics Of Exothermicity

Covering the dynamics of reactive systems and of explosions, the 15 papers discuss the treatment of turbulent mixing in reactive systems, acoustic interactions with combustion fields, liquid atomization, soot formation, practical applications of combustion in waste incineration and pulse jet ignition in internal combustion engines, detonations phenomena, and mixing effects in explosions. Includes six color plates. No index. Annotation copyrighted by Book News, Inc., Portland, OR

The need for accurate computational procedures to evaluate detailed properties of gas phase chemical reactions is evident when one considers the wealth of information provided by laser, molecular beam and fast How experiments. By stressing ordinary scalar computers to their limiting performance quantum chemistry codes can already provide sufficiently accurate estimates of the stability of several small molecules and of the reactivity of a few elementary processes. However, the accurate characterization of a reactive process, even for small systems, is so demanding in terms of computer resources to make the use of supercomputers having vector and parallel features unavoidable. Sometimes to take full advantage from these features all is needed is a restructure of those parts of the computer code which perform vector and matrix manipulations and a parallel execution of its independent tasks. More often, a deeper restructure has to be carried out. This may involve the problem of choosing a suitable computational strategy or the more radical alternative of changing the theoretical treatment. There are cases, in fact, where theoretical approaches found to be inefficient on a scalar computer exhibit their full computational strength on a supercomputer.

Reviews our current understanding of the subject. For graduate students and researchers in computational fluid dynamics and turbulence.

The first comprehensive reference guide to turbulent mixing driven by Rayleigh-Taylor, Richtmyer-Meshkov and Kelvin-Helmholtz instabilities.

Written by the scientists who performed the research, this book reports on the progress achieved by the outstanding team of researchers participating in the ONR Propulsion Program. It covers all aspects of the combustion process, from chemical synthesis, reaction pathways of the fuel, and combustor performance to the reduction of emissions, thrust vectoring, and control. The chapter authors discuss the relevant issues, describe their approach and results, and explain how the findings can be extended to practical applications. Richly illustrated and carefully edited for clarity, uniformity, and readability, this book offers a comprehensive survey of the field, from pre- to post-combustion.

The results obtained from kinetic studies on reactions in solids often depend on numerous factors. Therefore, it is important for researchers to understand how both chemical factors related to composition and procedural choices may influence outcomes. Dynamic Processes in Solids provides an authoritative overview of reactions in solids and helps readers interpret the results obtained from kinetic studies. In chapters written by active researchers, the reader will learn about choosing appropriate experimental techniques and their limitations for studying various types of reactions. Beginning with an introduction to numerous aspects of rate processes in solids and experimental techniques, information is provided on rate laws, factors affecting rates, diffusion, and sintering. Subsequent chapters deal with electrical conductivity in dispersed phase polymers, thermochemical reactions for producing solid materials, reactions in coordination compounds, dynamic observations on plastic deformation, light driven phenomena in quantum materials, decomposition of perovskite photovoltaic compounds, and reaction of oxygen radicals with surfaces. This book is a practical introduction to the field for chemists and researchers whose work is directly related to dynamic changes in solids, and additionally for those in related fields whose work would be enhanced by an understanding of these types of rate processes. Presents useful discussions of the applications of several experimental techniques Describes approaches for synthesis of solid materials by thermochemical reactions Presents theoretical interpretation structural dynamics and processes at the molecular level in solids Provides information on the relationships between performance and rate processes in several types of materials related to electronic behavior