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Latin American applied research

versión impresa ISSN 0327-0793

Resumen

ABD-ELAZIZ, M. M.  y  AHMED, S. E.. Group solution for unsteady boundary layer flow of a micropolar fluid near the rear stagnation point of a plane surface in a porous medium. Lat. Am. appl. res. [online]. 2008, vol.38, n.2, pp.161-168. ISSN 0327-0793.

The transformation group theoretic approach is applied to the system of equations governing the unsteady boundary layer flow of a micropolar fluid near the rear stagnation point of a plane surface in a porous media. The application of a two-parameter group reduces the number of independent variables by two, and consequently the system of governing partial differential equations with boundary conditions reduces to a system of ordinary differential equations with appropriate boundary conditions. The possible form of potential velocity Ue is derived in steady and unsteady cases. The family of ordinary differential equations has been solved numerically using a fourth-order Runge-Kutta algorithm with the shooting technique. The effect of varying parameters governing the problem is studied.

Palabras clave : Micropolar Fluid; Stagnation Point; Porous Medium.

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