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Choosing Hydrodynamic Fields

Published online by Cambridge University Press:  18 July 2011

J. W. Dufty  and
J. J. Brey
J. W. Dufty*
Affiliation:
Department of Physics, University of Florida, Gainesville, FL 32611, USA
J. J. Brey
Affiliation:
Física Teórica, Universidad de Sevilla, Apartado de Correos 1065, E-41080 Sevilla, Spain
*
⋆ Corresponding author. E-mail: dufty@phys.ufl.edu
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Abstract

Continuum mechanics (e.g., hydrodynamics, elasticity theory) is based on the assumption that a small set of fields provides a closed description on large space and time scales. Conditions governing the choice for these fields are discussed in the context of granular fluids and multi-component fluids. In the first case, the relevance of temperature or energy as a hydrodynamic field is justified. For mixtures, the use of a total temperature and single flow velocity is compared with the use of multiple species temperatures and velocities.

Keywords

granular gaskinetic equations equationshydrodynamics
Type
Research Article
Information
Mathematical Modelling of Natural Phenomena , Volume 6 , Issue 4: Granular hydrodynamics , 2011 , pp. 19 - 36
Copyright
© EDP Sciences, 2011

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