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Measurements and implications of vortex motions using two flow-visualization techniquesThe present comparative study of two different, but complementary flow-visualization techniques, which yield different interpretations of vortex-migration distance and lifetime, gives attention to the difficulty of determining vortex evolution and lifetime from flow-visualization measurements. The techniques involved the release of a fluorescent dye and of neutrally buoyant particles in a water-filled towing tank. Vortices are found to migrate farther, and last longer, when visualized with neutrally buoyant particles rather than with dyes.
Document ID
19910041498
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Delisi, Donald P.
(Northwest Research Associates, Inc. Bellevue, WA, United States)
Greene, George C.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1990
Publication Information
Publication: Journal of Aircraft
Volume: 27
ISSN: 0021-8669
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
91A26121
Funding Number(s)
CONTRACT_GRANT: N00014-89-C-0030
CONTRACT_GRANT: N0014-88-C-0284
Distribution Limits
Public
Copyright
Other

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