报告题目：Novel mechanisms in hummingbird flight
报 告 人：Haoxiang Luo (Professor, Vanderbilt University)
报告时间：2025年6月5日（星期四）上午10:00—11:00
报告地点：精品熟妇Av免费久久久久广州国际校区D1-b110会议室
主办单位：吴贤铭智能工程学院
报告人介绍：
Dr. Haoxiang Luo is a Professor in the Department of Mechanical Engineering at Vanderbilt University, Nashville, Tennessee, where he is currently the Department Chair. He obtained his Bachelor’s and Master’s degrees from Tsinghua University in China, and his Ph.D. from University of California, San Diego (UCSD), all degrees in mechanical engineering. He had postdoctoral training at UCSD and George Washington University before he joined Vanderbilt University in 2007. Dr. Luo received the Doctoral New Investigator award from the American Chemical Society Petroleum Research Fund in 2008, the National Science Foundation (NSF) Faculty Early Career Development (CAREER) award in 2010,and the General H.H. Arnold Award from the AIAA Tennessee Section in 2013. He is a Fellow of ASME, an Associate Fellow of AIAA, and a member of APS. He is currently serving on the editorial board for the Journal of Fluids Engineering. Dr. Luo’s research areas include computational fluid dynamics, fluid-structure interaction, scientific computing, and applied math.
报告摘要：
Hummingbirds are arguably the most agile flyers in nature. Studying the underlying physics of hummingbird flight may provide inspiration for developing highly maneuverable micro aerial vehicles (MAVs). In recent years, we have developed high-fidelity computational fluid dynamics (CFD) models to analyze the full-body aerodynamics and flight mechanics of hummingbirds, including hovering, cruise flight, and escape maneuvers. Our goal was to understand the underlying physical mechanisms that enable the high agility and control capabilities of hummingbirds. Specifically, we reconstructed hummingbird wing kinematics from digitized high-speed videos of the flight experiments and then used an immersed-boundary method to simulate the 3D unsteady aerodynamics. In the case of unsteady maneuvers, the flight mechanics involving pitch, yaw, and roll were also modeled computationally. In this talk, I will present several novel mechanisms we discovered from the simulations, which include wing inertia-assisted body rotation and inertial cross-coupling for fast maneuvers.