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High-performance computations of multiphase flows
Host: Prof. Paul Schneider
USI Campus EST, room D1.14, Sector D // Online on Zoom
16:30 - 17:30
Sorbonne University, France
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We will discuss the current state of the art of very large multiphase flow simulations for flows involving very large ranges of scales, such as those involving liquid jet high-speed atomisation producing very small droplets, the ladle flows in metallurgy at very large Schmidt numbers, and the boiling flows at large Jakob numbers. It is likely that high-performance octree and VOF methods will not be sufficient to reach the exascale and that other techniques, such as time parallelisation, will be needed.
Stéphane Zaleski is a Professor of Mechanics at Sorbonne Université (previously known as University of Paris 6). He was head of the Jean Le Rond d’Alembert Institute (SU & CNRS UMR 7190) from 2009 to 2018, one of the largest theoretical and applied mechanics laboratories in France. He studied for his doctorate at the Physics Department of Ecole Normale Superieure, rue Lhomond in Paris, then held an assistant professor position at the department of mathematics at MIT and a chargé de recherche position at CNRS. In 1992 he joined the Laboratoire de Modélisation en Mécanique which later became the Jean Le Rond d’Alembert Institute. He investigates various numerical methods for the simulation of multiphase flow with applications for atomization, porous media flow, and droplet impact. He has written several computer codes for the simulation of two-phase flow including SURFER (with G. Zanetti, R. Scardovelli, and D. Gueyffier) and PARIS Simulator (with G. Tryggvason). He is Associate editor of the J. Comput. Physics and serves on the editorial board of several other journals. He received the Victor Noury prize of the Paris Academy of Sciences and the Silver Medal of CNRS; he is a Fellow of the American Physical Society. He created the first master's degree program in theoretical and applied mechanics taught entirely in English at a French University.
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