The Architecture of Random Mixtures

Par Emmanuel Villermaux, Jeudi 20 octobre 2011, 15:45-17:15

The principles of scalar mixing in randomly stirred media are discussed, aiming at describing the overall concentration distribution of the mixture, its shape, and rate of deformation as the mixture evolves towards uniformity. We emphasize the impact of the individual trajectories of the particles, as well as the interaction rules between the particles, on the mixture evolution and fine structure. The discussion, which also suggests a new numerical method for scalar mixing, is illustrated by several experiments, both at high, and low Reynolds number.

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Mis en ligne le lundi 12 septembre 2011