WIT Press


Direct Evaluation Of Lubrication Forces In Asymptotically Corrected Completed Doubie Layer Boundary Integral Equation Formulations

Price

Free (open access)

Paper DOI

10.2495/MPF030211

Volume

42

Pages

10

Published

2003

Size

496.83 kb

Author(s)

A.A. Mammoli

Abstract

Direct evaluation of lubrication forces in asymptotically corrected completed double layer boundary integral equation formulations A.A. Mammoli Department of Mechauzical Engineeriug, Ihziversity ofNew Mexico, USA Abstract The quality of the solution in completed double layer boundary integral equation formulations for the simulation of densely packed suspensions of rigid particles is poor, due to the inability of the method to capture the lubrication flow between surfaces in near-contact. It is possible to correct this shortcoming by combining the solution of the boundary integral equation with the analytical asymptotic solutions for two-particle problems. The method in principle is applicable to sin+ ulations involving many rigid particles. The main difficulty in the implementation of this concept is that the corrective lubrication forces are not known a priori. However, the correction forces are related in a linear fashion to the relative velocities of the particles, and thus can be incorpora

Keywords