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Optimal control of lift/drag ratios on a rotating cylinderWe present the numerical solution to a problem of maximizing the lift to drag ratio by rotating a circular cylinder in a two-dimensional viscous incompressible flow. This problem is viewed as a test case for the newly developing theoretical and computational methods for control of fluid dynamic systems. We show that the time averaged lift to drag ratio for a fixed finite-time interval achieves its maximum value at an optimal rotation rate that depends on the time interval.
Document ID
19930026278
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ou, Yuh-Roung
(ICASE; NASA, Langley Research Center Hampton, VA, United States)
Burns, John A.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1992
Publication Information
Publication: Applied Mathematics Letters
Volume: 5
Issue: 3
ISSN: 0893-9659
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
93A10275
Funding Number(s)
CONTRACT_GRANT: NAS1-18605
CONTRACT_GRANT: AF-AFOSR-89-0079
CONTRACT_GRANT: AF-AFOSR-89-0001
Distribution Limits
Public
Copyright
Other

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