Fully developed laminar flow of non-Newtonian liquids through annuli: comparison of numerical calculations with experiments | Zendy

M. P. Escudier | Zendy; P.J. Oliveira | Zendy; F.T. Pinho | Zendy; S. Jerrod Smith | Zendy

Open Access

Fully developed laminar flow of non-Newtonian liquids through annuli: comparison of numerical calculations with experiments

Author(s) -

M. P. Escudier,

P.J. Oliveira,

F.T. Pinho,

S. Jerrod Smith

Publication year - 2002

Publication title -

experiments in fluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.01

H-Index - 122

eISSN - 1432-1114

pISSN - 0723-4864

DOI - 10.1007/s00348-002-0429-4

Subject(s) - laminar flow , materials science , newtonian fluid , mechanics , viscoelasticity , shear thinning , annulus (botany) , flow (mathematics) , non newtonian fluid , experimental data , rheology , thermodynamics , physics , composite material , mathematics , statistics

Experimental data are reported for fully developed laminar flow of a shear-thinning liquid through both a concentric and an 80% eccentric annulus with and without centrebody rotation. The working fluid was an aqueous solution of 0.1% xanthan gum and 0.1% carboxymethylcellulose for which the flow curve is well represented by the Cross model. Comparisons are reported between numerical calculations and the flow data, as well as with other laminar annular-flow data for a variety of shear-thinning liquids previously reported in the litera- ture. In general, the calculations are in good quantitative agreement with the experimental data, even in situations where viscoelastic effects, neglected in the calculations, would be expected to play a role.

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