Torque Characteristics for Spherical Annulus Flow

[+] Author and Article Information
A. M. Waked, B. R. Munson

Department of Engineering Science and Mechanics, Engineering Research Institute, Iowa State University, Ames, Iowa 50011

J. Fluids Eng 101(2), 284-286 (Jun 01, 1979) (3 pages) doi:10.1115/1.3448952 History: Received October 31, 1979; Online October 12, 2010


The torque needed to rotate concentric spheres when the spherical annulus gap between them is filled with a viscous fluid depends on the Reynolds number and the ratio of the angular velocities of the two spheres. Experimental torque results for low to moderate Reynolds numbers are presented. The secondary flow effect is evident.

Copyright © 1979 by ASME
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