The talk will start with description of the recent progress made by the speaker in developing Molecular Tagging Velocimetry and Thermometry (MTV&T) technique (U.S. patent pending) for simultaneous measurements of velocity and temperature distributions in fluid flows. Unlike most commonly-used particle-based techniques such as PIV and LDV, MTV&T technique utilizes specially-designed phosphorescent molecules that can be turned into long-lived “glowing” traces for flow diagnostics when they are excited by photons of appropriate wavelength. The unique glamour of the MTV&T will be demonstrated from the application examples to study complex fluid flow and heat transfer phenomena such as the thermal effect on the wake instability behind a heated cylinder and transient behavior of electroosmotic flows in electrokinetically-driven microfluidics.
The second part of the talk will give a brief introduction about several ongoing research projects in the speaker’s laboratory , which include quantum dot imaging for thermofluid diagnostics, bio-inspired airfoil designs for Micro-Air-Vehicle applications, fluid mixing control/enhancement in electrically-driven microfluidic or "Lab-on-a-chip" devices, and fluid-structure interaction around buildings in tornado-liked winds.
Dr. Hui Hu is currently an Assistant Professor in the Department of Aerospace Engineering at Iowa State University ( http://www.public.iastate.edu/~huhui/). He obtained his Ph.D. degree in Mechanical Engineering (Specialization in Optical Diagnostics) from the University of Tokyo, Japan in 2001, and a Ph.D. degree in Aerospace Engineering (Specialization in Jet Propulsion) from Beijing University of Aeronautics and Astronautics and Astronautics (BUAA) in 1996.
Dr. Hu’s research interests include 1). Development of advanced laser-based diagnostic techniques for fluid flow and heat transfer sensing; 2). Conducting fundamental studies to elucidate the underlying physics of complex fluid flow and heat transfer phenomena.