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Experimental velocity profiles in laminar flow around spheres at intermediate Reynolds numbers

Published online by Cambridge University Press:  29 March 2006

L. E. Seeley ,
R. L. Hummel  and
J. W. Smith
L. E. Seeley
Affiliation:
Department of Chemical Engineering and Applied Chemistry, University of Toronto Present address: Falconbridge Nickel Mines, Ltd, Sudbury, Ontario, Canada.
R. L. Hummel
Affiliation:
Department of Chemical Engineering and Applied Chemistry, University of Toronto
J. W. Smith
Affiliation:
Department of Chemical Engineering and Applied Chemistry, University of Toronto
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Abstract

Normal and tangential velocities in the boundary layer and out into the free stream have been obtained using a non-disturbing flow visualization technique for uniform laminar flow around a sphere. The non-similar data are available in tables at 2.5° intervals from 20° from the front to about 15° past the separation point a t Reynolds numbers of 290, 750, 1300 and 3000. Stream functions calculated by LeClair using a numerical solution of the Navier-Stokes equation at Re 21 300 are not in good agreement with measured values from 30° to 60°, but are in much better agreement around the separation point. Too few grid points near the sphere where the tangential velocities rise to a maximum above free-stream values may account for the difference.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 68 , Issue 3 , 15 April 1975 , pp. 591 - 608
Copyright
© 1975 Cambridge University Press

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