# Past Forthcoming Seminars

30 January 2004
14:30
Prof Bryan Grenfell
Abstract
• Mathematical Biology Seminar
30 January 2004
14:15
Dr Robert Thorne
Abstract
• Theoretical Particle Physics Seminar
29 January 2004
16:30
Roger Heath-Brown
Abstract
• Number Theory Seminar
29 January 2004
16:30
• Differential Equations and Applications Seminar
29 January 2004
16:15
Dr Elisabeth Winstanley
Abstract
• Oxral Series (Fisher Room of NAPL)
29 January 2004
14:30
R Bryant
Abstract
• Representation Theory Seminar
29 January 2004
14:00
Prof John Hinch
Abstract
While the average settling velocity of particles in a suspension has been successfully predicted, we are still unsuccessful with the r.m.s velocity, with theories suggesting a divergence with the size of the container and experiments finding no such dependence. A possible resolution involves stratification originating from the spreading of the front between the clear liquid above and the suspension below. One theory describes the spreading front by a nonlinear diffusion equation $\frac{\partial \phi}{\partial t} = D \frac{\partial }{\partial z}(\phi^{4/5}(\frac{\partial \phi}{\partial z})^{2/5})$. \\ \\ Experiments and computer simulations find differently.
• Computational Mathematics and Applications Seminar
29 January 2004
11:00
Gareth Jones
Abstract