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The School of Engineering, Applied Science, and Health presents its MMAE 593 seminar series featuring guest speaker Yang Liu, assistant professor of mechanical engineering at The City College of New York (CCNY), who will present “Exploring the Complex Droplet Behaviors in Various Multiphase Interactions.” This event is open to the public and will take place on Wednesday, November 4, from 12:45–1:45 p.m. in the Rettaliata Engineering Center auditorium (room 104).

Abstract

Droplet impact and phase-change is a widely observed phenomena encountered across a wide range of natural and industrial processes, such as inflight ice accretion on aircraft/wind turbines, plasma-assisted anti-/de-icing operations, droplet/particle transport driven by shock/blast, phase-change-based additive manufacturing, and energy conversions in various energy devices/systems. Advancing the understanding of the fundamental dynamic and thermal behaviors of these multiphase thermal-flow phenomena is critical to extending our knowledge in these natural and/or industrial processes and developing more efficient and safer thermal-flow systems. In this talk, I will discuss a series of experimental studies in exploring the underlying physics governing the behavior of various droplets during impact and phase-change processes central to these challenging thermal-flow phenomena. A suite of advanced thermal-flow diagnostic techniques that were implemented/developed in these experimental studies will be introduced in detail, including particle imaging velocimetry (PIV), random-dots projection imaging (RDPI), high-speed imaging, high-speed infrared (IR) imaging, and high-speed Schlieren imaging techniques.

Biography

Yang Liu is an assistant professor of mechanical engineering at The City College of New York (CCNY), where he directs the Experimental Aerodynamics and Multiphase Flow Laboratory (ExAM-Flow Lab). Before joining CCNY in 2022, he was an assistant professor at East Carolina University. He earned his Ph.D. in Aerospace Engineering from Iowa State University in 2016 and his B.S. in Aerospace Engineering from Beihang University in 2011. His research interests include plasma-droplet and plasma-particle interactions; multiphase flow and heat transfer in additive manufacturing; fluid-structure interactions; shock- and blast-driven multiphase interactions; aircraft icing physics and anti-/de-icing technologies; and unsteady flows in energy systems. Liu has published more than 50 peer-reviewed journal articles and more than 80 conference papers in thermal and fluid sciences. He is an associate fellow of the American Institute of Aeronautics and Astronautics (AIAA).