Numerical Simulation of a Pseudo Plastic Fluid Through Sudden Enlargement
Abstract
This paper presents the flow of non-Newtonian fluids through sudden enlargements. The calculations are done by a code with the finished volumes. The stabilizing effect of the physical characteristic of the fluid is taken into consideration. In addition, we set as objective the influence of the main parameters like the index of structure of the fluid, the Reynolds number and the aspect ratio of the widening, on the evolution of the velocity profile, the length of establishment of the flow in front of the enlargement as well as on the recirculation zone. The results obtained were confronted whenever possible with results from other literature.
References
Kahine, « Ecoulement de Fluides non Newtoniens à Travers des Elargissements Brusques », Int. Comm. Heat. Mass. Transfert. Vol.24.N0 8, pp : 1103-1112 (1997).
G. Ponthieu, “Ecoulement des Fluides Pseudoplastiques à travers des Elargissement Brusques », Thèse de doctorat Université Henri Poincaré Nancy 1 (1990).
Van Tuan Nguyen et Michel Lebouche. Pertes de Charge des Fluides Non Newtoniens Thermo dépendants en Ecoulement Entre Deux Plaques Parallèles”, Comptes Rendus Mécanique 335, pp : 20 – 24 .(2007).
R. Manica, “Simulation of Incompressible Non Newtonien Flows Throught Channel with Sudden Expansion Usin the Power – law Model. Tema Tend .Mat.Apl.Comput, PP 333-340, (2003).
Van Tuan Nguyen et all. “Etude Numérique de l’écoulement de fluides Non Newtoniens à travers un Elargissement Brusque », C.R.A cad .Sci Paris. T327, Série IIb, pp: 91-94. (1999).
M. Mahfoud . “Frottement et Pertes de charges des fluides Visco-élastiques dans des conduites Rectangulaires. Int . Comm. Heat .Mass. Transfert. Vol 33.PP 580-590.(2006).
E. Mitsoulis, J. Vlachopoulos, Non isothermal flow through parallel plates and a sudden contraction, The Can. J.Chem.Engin., 62, 837 (1984).
A. Laval, Mixed convection heat transfer to power law fluid in arbitrary cross section ducts, J.Heat Transfer, 111,396 (1989).
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