Mathematics Colloquium
Friday, October 4th, 3:00 p.m.
Math Annex 1100
Ian Frigaard
UBC
A Potpourri of Industrial and Viscoplastic Fluid Mechanics
Viscoplastic and yield stress effects occur in
many industrial and naturally occurring fluids and flows,
e.g. hair gel, mud and lava flows. In the first part of this
talk we outline the key physical features of such fluids
and explain how these fluids are modelled mathematically,
why they are interesting and also give a historical
perspective of developments in this area.
The second part of the talk describes, in varying depths, a range
of problems under current investigation. These include: displacement
of mud in oil wells, image processing, stability of shear flows,
TaylorCouette flows, bubble propagation, viscoplastic lubrication,
melt pool natural convection, pulp and paper flows. These problems
frequently involve modelling with viscoplastic fluid models
and are being studied within the fluid mechanics laboratory, which
has sprouted underneath the Maths building. An overview will be
given of the fluids lab evolution and facilities.
Refreshments will be served at 2:45 p.m. in the Faculty Lounge,
Math Annex (Room 1115).
