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Accueil du site > Séminaires > Archives séminaires > Séminaires 2014 > Séminaire MSC. Lundi 2 Juin 2014. Arshad Kudrolli (Clark University,USA) : "Active Granular Matter".

Séminaire MSC. Lundi 2 Juin 2014. Arshad Kudrolli (Clark University,USA) : "Active Granular Matter"

Sauf mention contraire, les séminaires et les soutenances se déroulent à 11h30 en salle 454A du bâtiment Condorcet.

Active Granular Matter

Arshad Kudrolli : Clark University, USA

Abstract : We discuss experiments designed with granular matter to develop the physics of self-propelled particle systems which move and interact via simple physical rules. The shape and mass distribution of a particle can be exploited to fabricate elements which perform random motions or directed random walks on a vibrated plate. The number density is varied from the dilute to the dense regime where they can move freely or suffer dynamical arrest. We will discuss the self-diffusion and density fluctuations of the self-propelled particles as a function of their degree of shape anisotropy and self-propulsion. We will give several examples of dynamic collective behavior which arises including clustering, swarming, and vortex motion depending on the individual interactions with neighboring particles. We will further examine the broader role of particle shape and discuss the application of models drawn from polymer physics on the packing and dynamics of granular matter.

Contact : Équipe séminaires / Seminar team - Published on / Publié le 13 janvier 2014

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