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HKSTAM and PolyU ME Joint Distinguished Lecture

Event and Seminar

MEWebinarSeries20220929web
  • Date

    29 Sep 2022

  • Organiser

    Hong Kong Society of Theoretical and Applied Mechanics (HKSTAM) and PolyU Department of Mechanical Engineering (PolyU ME)

  • Time

    16:30 - 18:00

  • Venue

    Zoom  

Remarks

e-Certificate of attendance will be provided. Latecomer or early leaver of the seminar might NOT be eligible for an attendance certificate.

Guest Speaker: Prof. YANG Chun, Charles

Professor and Associate Chair, School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU)

Prof. Yang obtained his BSc degree from the Department of Thermal Engineering at Tsinghua University, Master's degree in Engineering Thermophysics from University of Science and Technology of China, and PhD degree in Mechanical Engineering from University of Alberta. Prior to joining NTU in 1999, he had been with Syncrude Canada Ltd. - Edmonton Research Centre under NSERC Chair Programme in Oil Sands for three years. His research focuses on fundamental aspects of electrokinetic transport phenomena, microscale fluid flow and heat & mass transfer, icing and frosting, and surface and colloidal science. He has published 24 book chapters and more than 240 refereed journal papers with Google Scholar citation counts of over 14,000 and Hirsch-index of 55. He is an ASME Fellow and has won numerous awards. He has serviced as Editor/Associate Editor and is on the Editorial/Advisory Boards of several journals.

Topic: Microfluidic Linear and non-Linear Electrokinetics Phenomena

Abstract:

The past two decades have seen fast development of microfluidics that consists of microchannels and microstructures. Scaling analysis shows that the conventional pressure driven flows do not scale well with miniaturization. In contrast, electrokinetic driven phenomena that employ DC or AC electric fields to pump, mixing/concentrate, split liquid buffers and to transport, separate, pattern particles/cells, enjoy numerous advantages such as no moving parts, ease of control, well integration with standard microelectronics and fabrication methods. In this talk, I will present both experimental and theoretical aspects of some linear and nonlinear electrokinetic phenomena such as the micro-PIV characterizations of the electroosmotic flows with and without Joule heating effects, temperature gradient focusing, micromixing enhancement with AC electroosmosis, generalized electrokinetic boundary conditions, experimental validation of the wall effect on electrophoresis, particle patterning with dielectrophoresis, etc. Additionally, new development in electrokinetic energy generation will be discussed.

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