Shear viscosity and normal pressure differences in the scope of the extended Kirkwood-Smoluchowski equation

Autor:	H. M. Koo
Rok vydání:	1993
Předmět:	Work (thermodynamics) Shear thinning Smoluchowski coagulation equation Probability current Mathematical analysis Hard spheres Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Shear rate symbols.namesake Viscosity Classical mechanics symbols Boundary value problem Mathematics
Zdroj:	Physical Review E. 47:1685-1692
ISSN:	1095-3787 1063-651X
Popis:	The potential contribution to the viscosity in liquids is calculated from the pair-correlation function, which may be obtained by solving the extended Kirkwood-Smoluchowski (KS) equation. A secondary boundary condition near the hard core (r=1 + ) for the excess pair probability current density in the relative pair space is derived rigorously and applied to the extended KS equation. The intermolecular potential consists of hard core plus arbitrary soft tail. The viscosity coefficients calculated in this work prove to be essentially functions of the square root of the shear rate rather than functions of the shear rate itself. We give the explicit representation for the viscosity coefficients in the case of hard spheres. The shear thinning of the shear viscosity is recovered
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96a76266778f3c7eae57959bcaff1d53 https://doi.org/10.1103/physreve.47.1685 Zobrazit plný text záznamu