PHYSICAL MATHEMATICS SEMINAR


TOPIC:		A VARIATIONAL APPROACH TO FLUID TURBULENCE

SPEAKER:	RICHARD KERSWELL
		Department of Mathematics
		University of Bristol
		(United Kingdom)

ABSTRACT:

Recently there has been a resurgence of interest in obtaining rigorous
bounds on global transport quantities in fluid turbulence such as the heat
flux in Boussinesq convection and momentum transport in shear flows.  
This has been stimulated by the emergence of a new variational formulation
discovered by Doering and Constantin in the early '90s.  I will try to
give a brief overview of this new method as well as showing how it fits in
with a more classical approach pioneered by Malkus, Howard and Busse in
the '60s. Some new results aimed at reducing currentenergy dissipation
bounds will also be discussed.

DATE:		TUESDAY, APRIL 25, 2000

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