Math. Model. Nat. Phenom.
Volume 6, Number 4, 2011Granular hydrodynamics
|Page(s)||19 - 36|
|Published online||18 July 2011|
Choosing Hydrodynamic Fields
Department of Physics, University of Florida,
2 Física Teórica, Universidad de Sevilla, Apartado de Correos 1065, E-41080 Sevilla, Spain
Corresponding author. E-mail: email@example.com
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.
Mathematics Subject Classification: 76A02 / 82B40 / 82C40 / 82C70
Key words: granular gas / kinetic equations equations / hydrodynamics
© EDP Sciences, 2011
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