Title : Dynamics of small particles in flow

Abstract

Whether it is plankton in the ocean, dust-storms or water droplets in clouds, small particles in flow display a range of interesting behaviour, and in particular show a propensity to clumping. In this talk we will discuss how we may approach this problem, and the multiple approximations involved. And how a departure from sphericity affects interactions between the particles, and modifies clumping via the suppression of an instability.