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Article Dans Une Revue International Journal of Nonlinear Science Année : 2008

Similarity Flow Solutions of a Non-Newtonian Power-law Fluid

Résumé

In this paper we present a mathematical analysis for a steady-state laminar boundary layer flow, governed by the Ostwald-de Wael power-law model of an incompressible non- Newtonian fluid past a semi-infinite power-law stretched flat plate with uniform free stream velocity. A generalization of the usual Blasius similarity transformation is used to find similarity solutions [1]. Under appropriate assumptions, partial differential equations are transformed into an autonomous third-order nonlinear degenerate ordinary differential equation with boundary conditions. Using a shooting method, we establish the existence of an infinite number of global unbounded solutions. The asymptotic behavior is also discussed. Some properties of those solutions depend on the viscosity power-law index.
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hal-00372650 , version 1 (01-04-2009)

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Mohamed Guedda, Zakia Hammouch. Similarity Flow Solutions of a Non-Newtonian Power-law Fluid. International Journal of Nonlinear Science, 2008, 6 (3), pp.255-264. ⟨hal-00372650⟩

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