Eulerian and Lagrangian methods for detecting vortex formation and shedding

Yangzi Huang, Melissa A Green

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

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 languageEnglish (US)
Title of host publication53rd AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103438
DOIs
StatePublished - 2015
Event53rd AIAA Aerospace Sciences Meeting, 2015 - Kissimmee, United States
Duration: Jan 5 2015Jan 9 2015

Other

Other53rd AIAA Aerospace Sciences Meeting, 2015
CountryUnited States
CityKissimmee
Period1/5/151/9/15

ASJC Scopus subject areas

  • Aerospace Engineering

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    Huang, Y., & Green, M. A. (2015). Eulerian and Lagrangian methods for detecting vortex formation and shedding. In 53rd AIAA Aerospace Sciences Meeting [AIAA 2015-1537] American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2015-1537