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21 Apr -"Multiphase flow simulation: state of the art" Lecture by Stéphane Zaleski, Sorbonne Université, France

The visit of Stéphane Zaleski is organised in collaboration with Ruben Scardovelli from the Department of Industrial Engineering.

Apr 21, 2020 from 05:30 PM to 07:00 PM

Where Sala Rossa, Palazzo Marchesini, via Marsala 26, Bologna (first floor)

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Multiphase flows are the key to a large number of industrial processes, with much to do with energy and environment. Microfluidics often involves tiny droplets in micro-channels, and has applications to the drying of the GDL in PEMFC hydrogen fuel cells, to important biomedical engineering issues with encapsulated bubbles in the blood stream, and catalysis issues. At a larger scale, chemical engineering processes such as bubble columns, distillation, carbon capture, are limited by typical multiphase flow factors such as gas-liquid boundary layers or clogging. Fuel combustion in many applications such as aircraft, rocket or automotive engines involves spraying, a still poorly understood mechanism. At an event larger scale meteorite impact leads to the formation of tektites, tiny materials produced from droplet of molten rocks.

All of these phenomena can be studied numerically using modern interface simulation techniques. VOF techniques developed in Paris and Bologna are gaining increasing acceptance as a reliable, mass-conserving technique. They are supplemented by other novel ideas, such as machine learning using neural networks, fast molecular dynamics, octree grid adaptation, and further in the future, quantum computing.