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Dynamics of dissipative ordered fluids

Sonnet, A.M. and Virga, E.G. (2001) Dynamics of dissipative ordered fluids. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 64 (3). 031705-1. ISSN 1063-651X

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Abstract

A variational principle is proposed that allows to derive the equations of motion for a fluid with a general microstructure described by a tensorial order parameter. The only constitutive ingredients are the densities of the free energy and the dissipation, both subject to appropriate invariance requirements. As an illustration, it is shown how the hydrodynamic theory for uniaxial nematic liquid crystals can be derived within this setting.