题 目：Toward a New Approach to the Study of Bio-inspired Fluid Dynamics in Nature

时 间：2016年8月18日 10：00- 11：30（周四）
地 点：新主楼 C708

邀请人：王延奎 教授

报告人简介

Dr. Haibo Dong is currently an associate professor of Mechanical and Aerospace Engineering at the University of Virginia （UVA, 弗吉尼亚大学). Prior to his position at UVA, Dr. Dong was an associate professor of Mechanical Engineering at the Wright State University. He completed both his bachelor and master degrees in China and obtained his Ph.D. degree in Aerospace Engineering from UCLA in United States. After completing his doctorate, he spent three years as a post-doctoral researcher at the George Washington University. His current research involves computational fluid dynamics (CFD), fluid-structure interaction, low speed aero/hydrodynamics, flow visualization, flying and swimming, and biological fluid dynamics in nature. His presentation work is currently supported by the National Science Foundation (NSF).
Further research information: http://pages.shanti.virginia.edu/FSRG/

讲座内容

Flapping with flexible appendages is a hallmark of flying and swimming in nature, but achieving biological levels of aero/hydro-performance in bio-inspired robots design has proven elusive. This is due to our lack of understanding of the fundamental physics of the bio-inspired locomotion and experimental and computational difficulties in studying live flying and swimming animals. In this talk, a combined experimental and computational approach will be introduced for studying unsteady flows of freely flying and swimming animals. High-speed photogrammetry system and an accurate 3D data reconstruction technique are used together to measure the kinematics of animal body and appendages with extraordinary details. A model reduction tool is developed to extract the dominant kinematical components for analysis and computational modeling. An in-house, Cartesian-grid-based immersed boundary solver is then used to simulate corresponding unsteady flows in all their complexity. Computation, visualization, optimization, and analysis of vortex dynamics and aero/hydro-performance of various flying animals such as hummingbird, dragonfly and cicada as well as swimming animals such as trout, jack fish and orca will be showcased and discussed in this talk. The discovery of the new bio-inspired flow sciences is expected to bring new insights on the design of next generation bio-inspired robotic systems.