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Patrice Estelle, Christophe Lanos, Arnaud Perrot, Sofiane Amziane
Processing the vane shear flow data from Couette analogy

Appl. Rheol. 18:3 (2008) 34037 (6 pages)

Abstract: A new procedure is described to convert the vane torque and rotational velocity data into shear stress vs shear rate relationships. The basis of the procedure consists in considering locally the sheared material as a Bingham fluid and computing a characteristic shear rate from Couette analogy. The approach is first applied to experimental vane data of Newtonian fluid, then used to process vane experimental data of non-Newtonian and yield stress materials. Results, which are favourably compared with torsional flow, show that the approach correctly predicts the rheological behaviour of the materials investigated. © 2008 Applied Rheology.

DOI 10.3933/ApplRheol-18-34037

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