Collisions of particles suspended in turbulent flows
Thursday 04 June 2009
to 16:15 at
Professor Bernhad Mehlig (Goteborg University)
Suspensions of small particles in a fluid ('aerosols') are ubiquitous in the
natural world and in technology. Such systems may be unstable due to collisions of the suspended particles, giving rise to aggregation or to chemical reaction(for example, collision processes are fundamental to understanding the growth ofraindroplets in clouds).
It is an empirical fact that turbulence has a significant effect on such
collision processes (determining their rate as well as the outcome of a
collsion: fragmentation or coalescence). I summarise recent theoretical resultsconcerning collision processes in turbulent aerosols.