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POD Based Models of Self-Sustained Oscillations in the Flow Past an Open Cavity

Rowley, Clarence W. and Colonius, Tim and Murray, Richard M. (2000) POD Based Models of Self-Sustained Oscillations in the Flow Past an Open Cavity. In: 6th Aeroacoustics Conference and Exhibit, 12-14 June 2000, Lahaina, HI. https://resolver.caltech.edu/CaltechAUTHORS:20190726-104731320

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Abstract

The goal of this work is to provide accurate dynamical models of oscillations in the flow past a rectangular cavity, for the purpose of bifurcation analysis and control. We have performed an extensive set of direct numerical simulations which provide the data used to derive and evaluate the models. Based on the method of Proper Orthogonal Decomposition (POD) and Galerkin projection, we obtain low-order models (from 6 to 60 states) which capture the dynamics very accurately over a few periods of oscillation, but deviate for long time.


Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2000-1969DOIConference Paper
https://arc.aiaa.org/doi/10.2514/6.2000-1969PublisherConference Paper
ORCID:
AuthorORCID
Rowley, Clarence W.0000-0002-9099-5739
Colonius, Tim0000-0003-0326-3909
Murray, Richard M.0000-0002-5785-7481
Additional Information:© 2000 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc. with permission. Published Online: 22 Aug 2012. Supported by AFOSR under grant F49620-98-1-0095 with technical monitor Dr. Thomas Beutner.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)F49620-98-1-0095
Subject Keywords:Aeroacoustics
Other Numbering System:
Other Numbering System NameOther Numbering System ID
AIAA Paper2000-1969
Record Number:CaltechAUTHORS:20190726-104731320
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190726-104731320
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97472
Collection:CaltechAUTHORS
Deposited By: Melissa Ray
Deposited On:01 Aug 2019 22:36
Last Modified:03 Oct 2019 21:32

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