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报告内容摘要：
Nanotubes and nanowires, with their essentially 1D structure, are highly polarizable particles that can be readily manipulated with external electric fields. As a result, electromagnetic forcing of nanotubes and nanowires in liquid suspension offers a simple, reversible, and highly controllable system for exploring nanoscale physics as well as the macroscopic consequences of field-induced alignment and assembly of anisotropic nanoparticles in a fluid. In this talk, we introduce our work on the fluid mechanics of: (1) Individual, single-wall carbon nanotubes (SWNTs) forced to rotate in a quiescent fluid, (2) SWNTs under the combined effects of electric fields and shear flow, and (3) the controllable effective viscosity of SWNT suspensions under electric fields. We also briefly introduce our work on the controllable thermophysical properties of nanotube/nanowire-based “smart” fluids, including: (1) the effective thermal conductivity of aligned nanotube suspensions, and (2) the speed of sound of suspensions having field-induced microstructure.

报告人简介：
Dr. Jerry W. Shan is an associate professor in the Department of Mechanical and Aerospace Engineering at Rutgers University (New Jersey, USA). He received all his degrees from the California Institute of Technology (Ph.D. in Aeronautics in 2001, M.Sc. in Aeronautics in 1996, and B.Sc. in Engineering & Applied Science in 1995). Professor Shan is a fluid dynamicist with experience in experiments and analysis of fluid flows at scales ranging from flows about individual nanoparticles, to vesicular cell mimics, to large-Reynolds-number turbulent flows. His recent work focuses on the fluid mechanics and thermophysical properties of nanotube and nanowire suspensions under electromagnetic fields. He is a 2007 recipient of the US National Science Foundation CAREER award.