The Daniel Guggenheim School of Aerospace Engineering
invites you to attend the talk
Force Transients in Large-Disturbance Flows:
Vortices, Shear Layers, and Gusts
Anya R. Jones
Professor | Department of Aerospace Engineering
University of Maryland
Thursday, January 20
3:30 - 4:30 p.m.
About the Talk:
Wings experiencing large flow disturbances often experience massive flow separation resulting in shear layers and the formation of strong vortices. These vortices typically lead to large force and moment transients, and thus it is of great interest to understand how changes in vorticity within a flow give rise to unsteady forces. Using a combination of experimental, numerical, and theoretical approaches, three examples of these flows are given: surging wings, dynamic stall, and gust encounters. In each of these examples, data analysis focuses on the fundamental physics of vortex formation and evolution, and how the transport of vorticity gives rise to unsteady loading on lifting surfaces. As a general rule, two-dimensional and linear models are found to capture the essential physics of these types of flows and provide reasonable predictions of unsteady lift for short times after large flow disturbances.
About the Speaker:
Anya R. Jones is Professor in the Department of Aerospace Engineering at the University of Maryland, College Park. She received her PhD in Aerodynamics from the University of Cambridge, United Kingdom, her S.M. in Aeronautics and Astronautics from MIT, and her B.S. in Aeronautical and Mechanical Engineering from Rensselaer Polytechnic Institute. At UMD, she teaches a graduate course in unsteady aerodynamics and an undergraduate course in incompressible aerodynamics. Her research is focused on the experimental fluid dynamics of unsteady and separated flows. Her current projects focus on the flow physics of large-amplitude gust encounters, separated and reverse flow rotor aerodynamics, and flight through airwakes and other unsteady environments. Prof. Jones has been awarded the AFOSR Young Investigator Award, NSF CAREER Award, and the Presidential Early Career Award for Scientists and Engineers (PECASE). She has been a Fulbright Scholar at the Technion in Haifa, Israel and an Alexander von Humboldt Research Fellow at TU Braunschweig in Germany. She is currently chair of a NATO Research Technology Organization task group on gust response and unsteady aerodynamics, an associate fellow of AIAA, and a member of the Alfred Gessow Rotorcraft Center.