Dispersion in a rectangular network
- Event time: 11:30am
- Event date: 11th November 2015
- Speaker: Jacques Vanneste (Mathematics)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
I'll be discussing recent work with A Tzella (Birmingham) on the dispersion of a diffusive scalar released in a fluid flowing through a rectangular network. (The spreading of a pollutant released in the streets of a city with a grid plan like Manhattan illustrates the problem.) A large-deviation approach provides a coarse-grained description that captures both the Gaussian core and non-Gaussian tail of the scalar distribution. The approach, which is remarkably simple and explicit, captures a subtle interplay between flow, diffusion and geometry.
This is a roughly weekly series of didactical blackboard talks focussing on some theoretical aspect of Condensed Matter, Biological, and Statistical Physics..