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Boundary layers in a sectioned centrifuge

Published online by Cambridge University Press:  21 April 2006

G. Amberg  and
H. P. Greenspan
G. Amberg
Affiliation:
Department of Hydromechanics, Royal Institute of Technology, S-100 44 Stockholm, Sweden
H. P. Greenspan
Affiliation:
Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Abstract

We consider the flow of a suspension in a rotating, cylindrical container with inclined endwalls and a dividing harrier that hlocks any azimuthal motion around the axis. A boundary layer of clarified fluid appears when the influence of the Coriolis force is counteracted and although a bulk swirling motion is prevented by the meridional section, there is still an appreciable azimuthal flow in this thin purified-fluid layer. This flux produces an even more intense current on the leading side of the barrier (relative to the rotation direction) where the section meets the inclined wall.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 181 , August 1987 , pp. 77 - 97
Copyright
© 1987 Cambridge University Press

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