1. Scalar mixing: principles and consequences.
2. Liquid fragmentation: from ligaments to drop size distributions.

Emmanuel Villermaux, Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE) Marseille, France

The mechanisms building the overall concentration distribution in a scalar mixture, and the drops in a spray, will be examined successively. In both cases, the distributions belong to a unique family of distributions stable by self convolution, the signature of the aggregation process from which they originate. The general ideas will be illustrated by several examples, essentially split in two lectures.