IJPAM: Volume 86, No. 2 (2013)

ON THE NUMERICAL SOLUTIONS OF
THREE-DIMENSIONAL MHD STAGNATION-POINT
FLOW OF A NEWTONIAN FLUID

Alessandra Borrelli1, Giulia Giantesio2, Maria Cristina Patria3
1,2,3Department of Mathematics and Computer Science
via Machiavelli, 35, Ferrara, ITALY


Abstract. In this paper the steady three-dimensional stagnation-point flow of an incompressible, homogeneous, electrically conducting Newtonian fluid over a flat plate is investigated numerically. The fluid is permeated by a uniform external magnetic field H0. The effects of the magnetic field on the velocity profiles are presented graphically and discussed. This paper completes the analysis concerning the Newtonian fluids devoleped in [4].

The obtained results indicate that the thickness of the boundary layer decreases when the magnetic field increases. Moreover H0 tends to prevent the occurrence of the reverse flow.

By virtue of the numerical integration, the stagnation-point is classified as nodal or saddle point and as attachment or separation point.

Received: April 10, 2013

AMS Subject Classification: 76W05, 76D10

Key Words and Phrases: Newtonian fluids, MHD flow, three-dimensional stagnation-point flow, numerical solutions

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DOI: 10.12732/ijpam.v86i2.16 How to cite this paper?
Source:
International Journal of Pure and Applied Mathematics
ISSN printed version: 1311-8080
ISSN on-line version: 1314-3395
Year: 2013
Volume: 86
Issue: 2