The authors’ names are listed in alphabetical order. Pinho acknowledge the receipt of sabbatical leave grants by FCT (Grant No.
GR/F87813), Shell Research BV, and British Gas plc is gratefully acknowledged by M.P. The financial support of EPSRC/MTD (research Grant No. Nouar in providing further details of their published experimental data. Pinho Centro de Estudos de Feno´menos de Transporte, DEMEGI, Faculdade de Engenharia, Universidade do Porto, Rua Roberto Frias, 4200-465 Porto, Portugal The authors gratefully acknowledge the assistance of Drs J.M. Oliveira Departamento de Engenharia Electromecaˆnica, Universidade da Beira Interior, ´ vila e Boloma, Rua Marqueˆs D’A 6200 Covilha˜, Portugal F.T. Smith Department of Engineering, Mechanical Engineering, University of Liverpool, Brownlow Hill, Liverpool L69 3GH, UK E-mail: Tel.: +4804 Fax: +4848 P.J. Received: 26 July 2001 / Accepted: 21 February 2002 Published online: 5 June 2002 Springer-Verlag 2002 M.P. 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.Ībbreviations DH hydraulic diameter, 2d (m) e displacement of inner-cylinder axis from outer-cylinder axis (m). 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 literature. 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. Smithġ01 Abstract 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.
Experiments in Fluids 33 (2002) 101–111 DOI 10.1007/s0034-4įully developed laminar flow of non-Newtonian liquids through annuli: comparison of numerical calculations with experiments M.P.