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Feedback Control of High-Lift State for A Low-Aspect-Ratio Wing

Taira, Kunihiko and Rowley, Clarence W. and Colonius, Tim (2010) Feedback Control of High-Lift State for A Low-Aspect-Ratio Wing. In: 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 4-7 January 2010, Orlando, FL. https://resolver.caltech.edu/CaltechAUTHORS:20190717-102320131

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Abstract

The objective of this study is to employ feedback control to maximize time-average lift on a low-aspect-ratio wing by directly modifying the three-dimensional dynamics of the wake vortices. Flow control around such wing at post-stall angles of attack is numerically investigated at a low Reynolds number of 300 with blowing along the trailing edge. Motivated by the existence of time-periodic high-lift states under open-loop control with periodic excitation, the extremum seeking algorithm is considered for designing feedback control to lock the flow onto such high-lift states. Preliminary results are presented where the close-loop control is able to seek the optimal actuation frequency and yield high lift.


Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2010-357DOIConference Paper
https://arc.aiaa.org/doi/10.2514/6.2010-357PublisherConference Paper
ORCID:
AuthorORCID
Taira, Kunihiko0000-0002-3762-8075
Rowley, Clarence W.0000-0002-9099-5739
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2010 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc. with permission. Published Online: 25 Jun 2012. This work was supported by the US Air Force Office of Scientific Research (FA9550-05-1-0369) with the computations made possible by the US Department of Defense HPCMP and the Princeton University TIGRESS programs. Helpful discussions with Prof. David Williams and Mr. Steven Brunton are greatly acknowledged.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-05-1-0369
Subject Keywords:Aerospace Systems, Operations and Life Cycle
Other Numbering System:
Other Numbering System NameOther Numbering System ID
AIAA Paper2010-357
Record Number:CaltechAUTHORS:20190717-102320131
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190717-102320131
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97212
Collection:CaltechAUTHORS
Deposited By: Melissa Ray
Deposited On:18 Jul 2019 21:08
Last Modified:09 Mar 2020 13:19

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