# University of Minnesota

Aerospace Engineering and Mechanics

**Spring 2000 Seminar Series**

*Computer Simulation of Suspensions: A New Tool for MultiphaseFlow
Research*

*Abstract*

**Computer simulation of multiphase flows has grown dramatically in the
last decade. Problems as diverse as the Brownian motion of small colloidal
particles, the rheology of dense suspensions and emulsions, and the dynamics of
bubbly liquids have been addressed by dynamic simulation. This lecture will
trace the development of the methodologies used to simulate multiphase,
particulate systems. A central feature in these problems is to properly account
for the hydrodynamic interactions among particles, which has been accomplished
rigorously and successfully in the case of small particle Reynolds numbers and
in the limit of inviscid flow at high Reynolds numbers. Examples showing how
hydrodynamic forces influence suspension structure and determine macroscopic
behavior in these systems will be given. Current efforts at extending the range
of Reynolds numbers and the problems that can be addressed will also be
discussed.**

###

### Friday, April 14, 2000

209 Akerman
Hall

2:30-3:30 p.m.

### Refreshments served after the seminar in
227 Akerman Hall.

Disability accomodations provided upon request.

Contact Kristal Belisle, Principal
Secretary, 625-8000.