Numerical Simulation of Gluey Particles

نویسنده

  • ALINE LEFEBVRE
چکیده

We propose here a model and a numerical scheme to compute the motion of rigid particles interacting through the lubrication force. In the case of a particle approaching a plane, we propose an algorithm and prove its convergence towards the solutions to the gluey particle model described in [19]. We propose a multi-particle version of this gluey model which is based on the projection of the velocities onto a set of admissible velocities. Then, we describe a multi-particle algorithm for the simulation of such systems and present numerical results. Résumé. Nous proposons ici un modèle ainsi qu’un schéma numérique afin de résoudre le mouvement de particules rigides en interaction à travers la force de lubrification. Dans le cas d’une particule à l’approche d’un plan, nous proposons un algorithme et montrons sa convergence vers le modèle de particules visqueuses décrit dans [19]. Nous proposons une version multi-particules de ce modèle qui est basée sur la projection des vitesses sur un espace de vitesses admissibles. Ensuite, nous décrivons un algorithme multi-particules pour la simulation de tels systèmes et présentons des résultats numériques.

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تاریخ انتشار 2008