NEWTONIAN VISCOSITY AND VISCOELASTIC BEHAVIOR OF CONCENTRATED NEUTRALHARD-SPHERE COLLOIDAL SUSPENSIONS

Authors
COHEN EGD VERBERG R DESCHEPPER IM
Citation
Egd. Cohen et al., NEWTONIAN VISCOSITY AND VISCOELASTIC BEHAVIOR OF CONCENTRATED NEUTRALHARD-SPHERE COLLOIDAL SUSPENSIONS, International journal of multiphase flow, 23(4), 1997, pp. 797-807
Citations number
38
Categorie Soggetti
Mechanics
Journal title
International journal of multiphase flow → ACNP
ISSN journal
03019322
Volume
23
Issue
4
Year of publication
1997
Pages
797 - 807
Database
ISI
SICI code
0301-9322(1997)23:4<797:NVAVBO>2.0.ZU;2-8
Abstract
Simple expressions are given for the effective Newtonian viscosity as a function of concentration as well as for the effective visco-elastic behavior as a function of concentration and frequency for neutral mon odisperse hard sphere colloidal suspensions over the entire fluid rang e. The basic physical mechanisms underlying these formulae are discuss ed. The agreement with existing experiments is very good. Extensions t o charged colloidal suspensions and the incorporation of hydrodynamic interactions in the theory are discussed. (C) 1997 Elsevier Science Lt d.