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Fluid Mechanics Alp Tour - Howard A. Stone

Le 11 mars 2024 De 11:00 à 12:30
Salle Fontannes - Bât. Darwin La Doua 

Dans le cadre de son Fluid Mechanics Alps Tour, Pr. Howard Stone, Professeur à l’Université de Princeton, présentera ses travaux sur le campus de la Doua le Lundi 11 Mars de 11h à 12h en Salle Fontanes. As part of his Fluid Mechanics Alps Tour, Pr. Howard Stone, Professor at Princeton University, will present his work in la Doua on Monday March 11th from 11am to 12pm in the Salle Fontanes.

Lundi 11 mars 2024 - 11h00

Howard A. STONE

Princeton University

Themes with complex fluids: distinct flow problems involving rough surfaces, self-similarity, and speech

Abstract: In this talk I sketch some recent themes* from my research group, starting with a brief survey of some of the fluid mechanics problems that we have been investigating in recent years. Then, I discuss in more depth three problems. First, I describe the motion of particles near rough boundaries, where three dimensional helical trajectories are possible. (ii) Second, I consider thin-film drainage flows near an edge where the dynamics involves three independent variables. Nevertheless, a similarity solution is possible to achieve a description in terms of an ordinary differential equation, whose solution is shown to be in excellent agreement with experimental measurements. (iii) Finally, the recent COVID-19 pandemic highlighted asymptotic air-borne transmission of a virus during ordinary activities, such as conversations, which motivated us to tackle the interrelations of speech, linguistics, and fluid dynamics.

*The research described was performed by many people in my research group, as well as some external collaborations.
Bio: Professor Howard A. Stone is Donald R. Dixon ’69 and Elizabeth W. Dixon Professor in Mechanical and Aerospace Engineering at Princeton University. Professor Stone's research interests are in fluid dynamics, especially as they arise in research and applications at the interface of engineering, chemistry, physics, and biology. In particular, he developed original research directions, using experiments, theory, and simulations, in microfluidics, multiphase flows, electrokinetics, flows involving bacteria and biofilms, etc. He received the NSF Presidential Young Investigator Award, is a Fellow of the American Physical Society (APS), and is past Chair of the Division of Fluid Dynamics of the APS.

For ten years he served as an Associate Editor for the Journal of Fluid Mechanics, and is currently on the editorial or advisory boards of Physical Review Fluids, Langmuir, Philosophical Transactions of the Royal Society, and Soft Matter, and is co-editor of the Soft Matter Book Series. Professor Stone is the first recipient of the G.K. Batchelor Prize in Fluid Dynamics, which was awarded in August 2008, and the 2016 recipient of the Fluid Dynamics Prize of the APS. He was elected to the National Academy of Engineering in 2009, the American Academy of Arts and Sciences in 2011, and the National Academy of Sciences in 2014.