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Notes on experimental velocity profiles in laminar flow around spheres at intermediate Reynolds numbers

Published online by Cambridge University Press:  19 April 2006

M. N. Esmail
Affiliation:
Department of Chemical Engineering and Applied Chemistry, University of Toronto, Ontario M5S 1A4 Present address: Department of Chemistry and Chemical Engineering, University of Saskatchewan, Saskatoon, Canada.
R. L. Hummel
Affiliation:
Department of Chemical Engineering and Applied Chemistry, University of Toronto, Ontario M5S 1A4
J. W. Smith
Affiliation:
Department of Chemical Engineering and Applied Chemistry, University of Toronto, Ontario M5S 1A4

Abstract

Seeley, Hummel & Smith (1975) reported the results of experiments to study the dynamics of flow around spheres at intermediate Reynolds numbers using a nondisturbing flow-visualization technique. The flow patterns were recorded on ciné photographs and the information stored was processed in order to obtain the velocity field. The position of fluid elements shown by the photochromic indicator traces were estimated by eye on a projection screen. In this paper, a new set of results based on the same films has been reduced and computed using the ‘POLLY’ film-reading system described by Esmail, Smith & Hummel (1976). Some numerical boundary-layer solutions are included to show the reliability of the data, and comparisons with the results previously reported by Seeley et al. (1975) are presented.J. W. Smith will be pleased to send a complete set of experimental data on request.

Type
Research Article
Copyright
© 1979 Cambridge University Press

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References

Esmail, M. N., Smith, J. W. & Hummel, R. L. 1976 Proc. 12th Int. Cong. High Speed Photography, Toronto, pp. 508.
Frossling, N. 1958 N.A.C.A. Tech. Memo. no. 1432.
Lochiel, A. C. & Calderbank, P. H. 1964 Chem. Engng Sci. 19, 471.
Popovich, A. T. & Hummel, R. L. 1967a Chem. Engng Sci. 22, 21.
Popovich, A. T. & Hummel, R. L. 1967b A.I.Ch.E. J. 14, 854.
Seeley, L. E., Hummel, R. L. & Smith, J. W. 1975 J. Fluid Mech. 68, 591.
Smith, J. W. & Hummel, R. L. 1973 J. S.M.P.T.E. 82, 278.