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Torque on a sphere inside a rotating cylinder.A circular cylinder of finite dimensions is made to rotate around a sphere fixed in the center of the cylinder. The couple on the sphere is measured over a wide range of rotational speeds for both Newtonian and non-Newtonian fluids. For the Newtonian liquids a comparison of the experimental results is made with Collins' (1955) expansion of the couple as a series in even powers of the angular Reynolds number. For non-Newtonian liquids the apparatus proves to be extremely useful for an accurate determination of the zero shear rate viscosity using only a small amount of fluid.
Document ID
19720060048
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mena, B.
(University College of Wales Aberystwyth, United Kingdom)
Levinson, E.
Caswell, B.
(Brown University Providence, R.I., United States)
Date Acquired
August 6, 2013
Publication Date
March 25, 1972
Publication Information
Publication: Zeitschrift fuer angewandte Mathematik und Physik
Volume: 23
Subject Category
Fluid Mechanics
Accession Number
72A43714
Distribution Limits
Public
Copyright
Other

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