Author(s)

V. Havlik & J. Vycital

Abstract

Flow of dense non-Newtonian slurries in pipes - experiments and modelling V. Havlik & J. Vycital Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 166 29 Prague 6, Czech Republic E-Mail: havlik@hpux.fsv. cvut. cz vycital@mat.fsv. cvut. cz Abstract Despite of great effort, the turbulent flow of dense homogeneous non-Newtonian slurries in pipes is not fully understood, yet. The objective of the paper is to present rheological characterisation, friction losses and analysis of laminar and turbulent flow of dense kaolin slurries. The experimental measurements were performed using the pressure capillary viscometer and a test loop and the results are presented for kaolin slurries with volumetric concentration up to 22%. Capillaries had diameter of 2.812 mm, 3.524 mm, 5.245 mm and 6.007 mm, while pipe diameter in the test loop was 10.5 mm, 17.5 mm and 26.8 mm. Comparison between the pressure capillary viscometer and test loop results sh

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