Statistical Description and Evolution of Reactive Gas Systems

Raymond Brun

in Introduction to Reactive Gas Dynamics

Published in print February 2009 | ISBN: 9780199552689
Published online May 2009 | e-ISBN: 9780191720277 | DOI:
 Statistical Description and Evolution of Reactive Gas Systems

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This chapter begins by presenting a statistical definition of state and transport parameters of non-equilibrium flows, starting from the concept of distribution function. It then describes the evolution of the system with the Boltzmann equation and with the macroscopic conservation equations. The various types of intermolecular collisions, elastic, inelastic, reactive are taken into account in the collisional balance of the Boltzmann equation and expressions of the corresponding collision frequencies are given. In the appendices, some results on molecular interaction potentials and details on collisional processes are presented, as well as a few elements of tensorial algebra.

Keywords: distribution function; statistical description; elastic; inelastic; reactive collisions; collisional balance; molecular interaction; Boltzmann equation; conservation equations

Chapter.  10245 words.  Illustrated.

Subjects: Mathematical and Statistical Physics

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