University of Minnesota
Aerospace Engineering and Mechanics
Spring 2002 Seminar Series



Some Interfacial Flow Problems


Prof. George M. "Bud" Homsy

Department of Mechanical Engineering, University of California


Abstract

Small scale flows are of critical importance in many emerging technologies, including high speed coating, the effect of topography and imperfections in ultra thin film coatings, the motion of bubbles in constrained geometries in MEMS devices, and the use of microbubbles as valves and actuators. These applications in turn lead to a class of fundamental fluid mechanics problems in which interfaces and interfacial forces play a key role. This talk will discuss some recent theoretical and experimental work in these areas, including the stability of driven contact lines, flow over topography, optimal leveling by Marangoni stresses, thermocapillary migration of bubbles in microchannels and chaotic advection in drops driven by electrical stresses.

Friday, February 15, 2002
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, Senior Secretary, 625-8000.