PHYSICAL MATHEMATICS SEMINAR
TOPIC: 2-D FLUID DYNAMICS AND THE
INVERSE GRAVITATIONAL PROBLEM
SPEAKER: DR. DARREN CROWDY
Imperial College
United Kingdom
ABSTRACT:
In this talk we demonstrate how an analogy with the inverse
gravitational problem (i.e. the problem of reconstructing the shape of a
massive object from knowledge of its far-field gravitational
potential) can be used to gain analytical insight (often in the form of
exact results) into diverse physically-important problems in
two-dimensional fluid dynamics. The discussion will include (a) free
boundary problems (including Hele-Shaw flows and viscous sintering
(Stokes) flows) (b) coherent vortical structures observed in forced 2-D
turbulence (in particular,multipolar vortices such as tripoles, triangular
vortices etc.)
DATE: TUESDAY, SEPTEMBER 21, 1999
TIME: 2:30 PM
LOCATION: Building 2, Room 338
Refreshments will be served at 3:30 PM in Building 2, Room 349
Massachusetts Institute of Technology
Department of Mathematics
Cambridge, MA 02139