A numerical simulation of suspension flow using a constitutive model based on anisotropic interparticle interactions |
| |
Authors: | Nhan Phan-Thien Xi-Jun Fan Rong Zheng |
| |
Affiliation: | (1) Department of Mechanical and Mechatronic Engineering University of Sydney NSW 2006 Australia, AU;(2) Moldflow Corporation 259-261 Colchester Road Kilsyth, Vic 3137, Australia, AU |
| |
Abstract: | We report a Brownian configuration field implementation of a recent constitutive equation for suspensions, reported by Phan-Thien et al. 1999. The numerical method is a hybrid technique, which combines a modification of the Brownian configuration field method described by Hulsen et al. 1997 and the adaptive viscosity split stress formulation proposed by Sun et al. 1996. The implementation is used to examine the flow past a sphere in a tube. The relative viscosity derived from the drag force/sedimentation velocity agrees well with a well-known empiricism. In addition, the ratio of the pressure force to the drag on the sphere seems to be weakly dependent on the volume fraction, and is somewhat higher than Brenner's results of 1962, which were derived for Newtonian fluids. Received: 5 April 1999/Accepted: 27 September 1999 |
| |
Keywords: | Brownian configuration field Adaptive viscosity Falling ball viscosity Suspension modelling |
本文献已被 SpringerLink 等数据库收录! |