Departmental Papers (MEAM)

Title

An Explicit Finite-Difference Scheme for Simulation of Moving Particles

Document Type

Journal Article

Date of this Version

February 2006

Comments

Postprint version. Published in Journal of Computational Physics, Volume 212, Issue 1, 2006, pages 166-187.
Publisher URL: http://dx.doi.org/10.1016/j.jcp.2005.06.021

Abstract

We present an explicit finite-difference scheme for direct simulation of the motion of solid particles in a fluid. The method is based on a second order MacCormack finite-difference solver for the flow, and Newton’s equations for the particles. The fluid is modeled with fully compressible mass and momentum balances; the technique is intended to be used at moderate particle Reynolds number. Several examples are shown, including a single stationary circular particle in a uniform flow between two moving walls, a particle dropped in a stationary fluid at particle Reynolds number of 20, the drafting, kissing, and tumbling of two particles, and 100 particles falling in a closed box.

Date Posted: 20 August 2006

This document has been peer reviewed.