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Flow separation on a spheroid at incidence

Published online by Cambridge University Press:  19 April 2006

Taeyoung Han  and
V. C. Patel
Taeyoung Han
Affiliation:
Institute of Hydraulic Research, University of Iowa, Iowa City
V. C. Patel
Affiliation:
Institute of Hydraulic Research, University of Iowa, Iowa City
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Abstract

Surface streamline patterns on a spheroid have been examined at several angles of attack. Most of the tests were performed at low Reynolds numbers in a hydraulic flume using coloured dye to make the surface flow visible. A limited number of experiments was also carried out in a wind tunnel, using wool tufts, to study the influence of Reynolds number and turbulent separation. The study has verified some of the important qualitative features of three-dimensional separation criteria proposed earlier by Maskell, Wang and others. The observed locations of laminar separation lines on a spheroid at various incidences have been compared with the numerical solutions of Wang and show qualitative agreement. The quantitative differences are attributed largely to the significant viscous-inviscid flow interaction which is present, especially at large incidences.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 92 , Issue 4 , 27 June 1979 , pp. 643 - 657
Copyright
© 1979 Cambridge University Press

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