The visualization and tracking of the vortices shed from a pitching panel is studied to develop a better method of identifying and tracking coherent structures in unsteady flows. The research processes a large amount of data from the 2D simulation of a flat plate undergoing a 45° pitch-up maneuver. The Eulerian Г1 and Q functions, as well as Lagrangian coherent structures (LCS) analysis are applied at the center and boundary of the vortices. The multiple vortices forming and shedding from the plate are visualized well by their vortex centers and boundaries. The saddle points and vortex centers are tracked, which could time the vortex separation and shedding more precisely. The research reveals the rich vortex information and dynamics details available by combining methods.
|Original language||English (US)|
|Title of host publication||53rd AIAA Aerospace Sciences Meeting|
|Publisher||American Institute of Aeronautics and Astronautics Inc, AIAA|
|State||Published - 2015|
|Event||53rd AIAA Aerospace Sciences Meeting, 2015 - Kissimmee, United States|
Duration: Jan 5 2015 → Jan 9 2015
|Name||53rd AIAA Aerospace Sciences Meeting|
|Other||53rd AIAA Aerospace Sciences Meeting, 2015|
|Period||1/5/15 → 1/9/15|
Bibliographical notePublisher Copyright:
© 2015 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.