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MEAM Seminar: “Multiscale Interactions in Multiphase Turbulent Flows: Fundamentals to Applications”

March 3, 2020 at 10:30 AM - 12:00 PM

Recent advances in experimental measurements and numerical simulations has allowed us to discover new phenomena in multiphase turbulence (a flow regime characterized by chaotic and irregular motion in the presence of immersed surfaces/bodies). In this talk, I will discuss some of these new discoveries and their importance both from a fundamental and an application viewpoint. I will first present our finding of a surprising fluctuation-induced force between two plates immersed in a turbulent fluid. The mechanism of force generation reveals an intriguing analogy with the quantum Casimir effect. Next, I will discuss how multiscale interactions between immersed bodies/surfaces and a carrier turbulent fluid can lead to drag reduction in the context of Taylor-Couette flows. I will conclude by showing some recent advances in our understanding of the role of turbulence in bio-physical flows (e.g. Cardio-vascular flow).

Vamsi Spandan

George Carrier Fellow in Applied Mathematics, Harvard University

Vamsi Spandan is the George Carrier Fellow in Applied Mathematics at Harvard University. Previously, he received his PhD from the Physics of Fluids and Max-Planck Center for Complex Fluid Dynamics in Netherlands and undergraduate degree from the Indian Institute of Technology, Madras in India. Over the years, Vamsi has worked on projects spanning a wide range of disciplines, viz. Fluid Mechanics, Turbulence Computational Physics, Biophysics, Reinforcement Learning in Physics and High Performance Computing and studies them using a theoretical and numerical approach while exploiting high performance computing. He is currently working on inverse problems and design problems in Fluid & Thermal Sciences using deep learning.


March 3, 2020
10:30 AM - 12:00 PM
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Mechanical Engineering and Applied Mechanics
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Wu and Chen Auditorium (Room 101), Levine Hall
3330 Walnut Street
Philadelphia, PA 19104 United States
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