Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation

Details Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation

2001-02-04

arxiv.org/abs/cond-mat/0102061v1

Comput. Phys. Comm. 142, 446 (2001)

Physics

Condensed Matter

Soft Condensed Matter

Presented at Conference on Computational Physics (CCP2000), held at Gold Coast, Australia from 3-8, December 2000

Scientific paper

10.1016/S0010-4655(01)00386-1

We have developed a multiple image method to compute the interparticle force for a polydisperse electrorheological (ER) fluid. We apply the formalism to a pair of dielectric spheres of different dielectric constants and calculate the force as a function of the separation. The results show that the point-dipole (PD) approximation errs considerably because many-body and multipolar interactions are ignored. The PD approximation becomes even worse when the dielectric contrast between the particles and the host medium is large. From the results, we show that the dipole-induced-dipole (DID) model yields very good agreements with the multiple image results for a wide range of dielectric contrasts and polydispersity. The DID model accounts for multipolar interaction partially and is simple to use in computer simulation of polydisperse ER fluids.

Affiliated with

Also associated with

No associations

Rating

Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-517455