Research Article
Feb 1971
Onset of Instability of Power-Law Fluid in Couette Flow
Authors: Yun-Sheng Yu and Dan B. McVickarAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 97, Issue 1
Abstract
The critical Reynolds numbers at the onset of instability of a Newtonian and a power-law fluid, respectively, in the annulus between two coaxial cylinders, with the inner cylinder rotating and the outer cylinder stationary, are determined theoretically based on Galerkin's method. For the Newtonian fluid, Galerkin's method is equally convergent as methods used previously. Experiements were made using Carbopol as a power-law fluid with a flow behavior index of about 0.5. The measured values of the critical Reynolds number are lower than the predicted values by about 9%.
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Published In
Journal of the Engineering Mechanics Division
Volume 97 • Issue 1 • February 1971
Pages: 1 - 12
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Feb 1971
Published online: Feb 3, 2021
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Affiliations
Yun-Sheng Yu
Prof., Dept. of Civ. Engrg., Univ. of Kansas, Lawrence, Kan
Dan B. McVickar
Technical Dir. of Engrg., Lear Siegler, Inc., Holland, Mich
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