Applied Rheology: Publications
Maria Chatzimina, Georgios Georgiou, Andreas Alexandrou
Wall shear rates in circular Couette flow of a Herschel-Bulkley fluid

Appl. Rheol. 19:3 (2009) 34288 (8 pages, including corrigendum)

Abstract: The objective of this work is to study quantitatively the errors introduced by the standard Newtonian and power-law assumptions used in the determination of the material properties of viscoplastic fluids from circular Couette experiments. The steady-state circular Couette flow of a Herschel-Bulkley fluid is solved assuming that the inner cylinder is rotating at constant speed while the outer one is fixed. Analytical solutions are presented for certain values of the power-law exponent. It is shown that the error in the computed wall shear rate, which is insignificant when the diameter ratio is closed to unity,may grow large depending on the diameter ratio and the material parameters. © 2009 Applied Rheology.

DOI 10.3933/ApplRheol-19-34288

-- full text PDF available for subscribers --

-- open access PDF extract available for non-subscribers --

You have no password-free access to Applied Rheology Online. If you are a subscriber, enter login details below. For password-free access, we need your IP address. Sample manuscripts for free download can be found here

download to disk (some browsers prefer this option)
login name

Purchase this article for 20 € ?

Forgotten your login details? Send an email with subject "AR login" to

Appl Rheol 19 (2009) issues:


© Applied Rheology 2018