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Group similarity transformation of a non-Newtonian laminar flow past a vertical plate
Faculty
Science
Year:
2008
Type of Publication:
Article
Pages:
661-674
Authors:
Kassem, M. M
DOI:
10.1002/zamm.200700062
Journal:
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK WILEY-BLACKWELL
Volume:
88
Research Area:
Mathematics; Mechanics
ISSN
ISI:000258416700006
Keywords :
non-Newtonian flow, group theoretic method, thermal boundary layer, Prandtl and Reynolds numbers
Abstract:
The heat and mass transfer of a non-Newtonian fluid past a continuous moving vertical sheet subjected to constant heat flux is analyzed using the group similarity transformation method. The nonlinear coupled partial differential equation governing the flow and the boundary conditions are transformed to a system of ordinary differential equations with appropriate boundary conditions. Two cases for the external flow are analytically obtained during the transformation process. One is new; u(w) = x/t, while the other corresponds to Falkner-Skan case. For both cases the ordinary differential equations are solved numerically using the shooting method. The effect of Prandtl and Reynolds numbers as well as the fluid flow index n on the velocity and temperature of the boundary-layer, is investigated. A comparison with previous numerical work is then presented. (c) 2008 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.
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