Research Article
Jul 1970
Free Surface, Velocity Gradient Flow Past Hemisphere
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VIEW THE REPLYAuthors: Gordon H. Flammer, M.ASCE, J. Paul Tullis, M.ASCE, and Earl S. Mason, AM.ASCEAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 96, Issue 7
Abstract
The drag on a hemisphere in a finite-flow field with free surface effects is evaluated by successively studying six flow fields, which allows the study of one new variable at a time. These flow fields are: the semi-infinite uniform and nonuniform flow fields, the finite uniform and nonuniform flow fields without free surface effects, and the finite uniform and nonuniform flow fields with free surface effects. Three regimes of flow are defined for the hemisphere which are: (1) A regime of pronounced free surface effects, (2) a regime of moderate free surface effects, and (3) a regime of negligible free surface effects. The effect of these variables and range of conditions under which they are effective is considered.
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Published In
Journal of the Hydraulics Division
Volume 96 • Issue 7 • July 1970
Pages: 1485 - 1502
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Jul 1970
Published online: Feb 3, 2021
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Authors
Affiliations
Gordon H. Flammer, M.ASCE
Prof. of Hydr. Engrg., Utah State Univ., Logan, U. T
J. Paul Tullis, M.ASCE
Asst. Professor of Civil Engineer; Colorado State Univ., Fort Collins, C. O
Earl S. Mason, AM.ASCE
Assoc. Prof. of Civ. Engrg., Univ. of North Dakota, Grand Forks, N. D
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