Generalized hydrodynamics of a dilute suspension of finite-sized particles: dynamic viscosity.

Hernández, S I; Santamaría-Holek, I; Mendoza, Carlos I; del Castillo, L F

Hernández, S I; Santamaría-Holek, I; Mendoza, Carlos I; del Castillo, L F.

Afiliação

Hernández SI; Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apartado Postal 70-360, 04510 México, D.F., Mexico.

Phys Rev E Stat Nonlin Soft Matter Phys ; 74(5 Pt 1): 051401, 2006 Nov.

Article em En | MEDLINE | ID: mdl-17279903

RESUMO

We present a mesoscopic hydrodynamic description of the dynamics of colloidal suspensions. We consider the system as a gas of Brownian particles suspended in a Newtonian heat bath subjected to stationary nonequilibrium conditions imposed by a velocity field. By means of a generalized Fokker-Planck equation, we obtain a set of coupled differential equations for the local diffusion current and the evolution of the total stress tensor. We find that the dynamic shear viscosity of the system contains contributions arising from the finite size of the particles.

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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev E Stat Nonlin Soft Matter Phys Assunto da revista: BIOFISICA / FISIOLOGIA Ano de publicação: 2006 Tipo de documento: Article País de afiliação: México País de publicação: Estados Unidos

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