The Resource Trailing vortices in stratified fluids, T. Sarpkaya, S.K. Johnson

Trailing vortices in stratified fluids, T. Sarpkaya, S.K. Johnson

Label
Trailing vortices in stratified fluids
Title
Trailing vortices in stratified fluids
Statement of responsibility
T. Sarpkaya, S.K. Johnson
Creator
Contributor
Subject
Language
eng
Summary
Experiments were conducted with two Delta wings and a streamlined body with lifting surfaces to investigate the evolution of turbulent trailing vortices in stratified and unstratified water. The vortex trajectories were determined as a function of the relative depth D/b sub o, normalized time V sub o t/b sub o, and the stratification parameter Nb sub o/V sub o. The results have shown that the vortices rise only to a finite height as they gradually demise under the influence of turbulence, sinusoidal instability, and the vortex breakdown. The effect of stratification is to reduce the lifespan of vortices and the maximum height attained by them. Various approximate analyses have been examined and new ones have been proposed to determine the lifespan of the vortices. Finally, an exploratory numerical analysis of the two-dimensional, unsteady laminar vortices has been carried out with encouraging results. (Author)
Cataloging source
CMontNP
http://library.link/vocab/creatorDate
1928-
http://library.link/vocab/creatorName
Sarpkaya, Turgut
Government publication
federal national government publication
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
http://library.link/vocab/relatedWorkOrContributorName
  • Naval Postgraduate School (U.S.)
  • Johnson, S. K
http://library.link/vocab/subjectName
  • Vortex-motion
  • Stratified flow
  • Aerodynamics
  • Hydrodynamics
  • Airplanes
Type of report
Technical report; 1982.
Label
Trailing vortices in stratified fluids, T. Sarpkaya, S.K. Johnson
Link
Instantiates
Publication
Note
  • "NPS-69-82-003"--Cover
  • Cover title
  • "June 1982"--Cover
  • "Prepared for: Defence Advanced Research Projects Agency, 1400 Wilson Blvd., Arlington, VA 22209."
Bibliography note
Includes bibliographical references (126-130)
Extent
1 online resource (iv, 162 pages
Form of item
online
Governing access note
"Approved for public release; distribution is unlimited"--Cover
Other physical details
illustrations)
Specific material designation
remote
Label
Trailing vortices in stratified fluids, T. Sarpkaya, S.K. Johnson
Link
Publication
Note
  • "NPS-69-82-003"--Cover
  • Cover title
  • "June 1982"--Cover
  • "Prepared for: Defence Advanced Research Projects Agency, 1400 Wilson Blvd., Arlington, VA 22209."
Bibliography note
Includes bibliographical references (126-130)
Extent
1 online resource (iv, 162 pages
Form of item
online
Governing access note
"Approved for public release; distribution is unlimited"--Cover
Other physical details
illustrations)
Specific material designation
remote

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