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题名/责任者:

Granular gaseous flows : a kinetic theory approach to granular gaseous flows / Vicente Garzo.

出版发行项:

Cham, Switzerland : Springer, 2019.

ISBN:

9783030044435:

载体形态项:

394 pages ; 24 cm.

丛编说明:

Soft and Biological Matter

丛编统一题名:

Soft and biological matter.

个人责任者:

Garzo, Vicente, author.

论题主题:

Kinetic theory of gases.

论题主题:

Kinetic theory of matter.

论题主题:

Granular materials.

中图法分类号:

O354

书目附注:

Includes bibliographical references and index.

摘要附注:

This book addresses the study of the gaseous state of granular matter in the conditions of rapid flow caused by a violent and sustained excitation. In this regime, grains only touch each other during collisions and hence, kinetic theory is a very useful tool to study granular flows. The main difference with respect to ordinary or molecular fluids is that grains are macroscopic and so, their collisions are inelastic. Given the interest in the effects of collisional dissipation on granular media under rapid flow conditions, the emphasis of this book is on an idealized model (smooth inelastic hard spheres) that isolates this effect from other important properties of granular systems. In this simple model, the inelasticity of collisions is only accounted for by a (positive) constant coefficient of normal restitution. The author of this monograph uses a kinetic theory description (which can be considered as a mesoscopic description between statistical mechanics and hydrodynamics) to study granular flows from a microscopic point of view. In particular, the inelastic version of the Boltzmann and Enskog kinetic equations is the starting point of the analysis. Conventional methods such as Chapman-Enskog expansion, Grad's moment method and/or kinetic models are generalized to dissipative systems to get the forms of the transport coefficients and hydrodynamics. The knowledge of granular hydrodynamics opens up the possibility of understanding interesting problems such as the spontaneous formation of density clusters and velocity vortices in freely cooling flows and/or the lack of energy equipartition in granular mixtures.

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