Numerical study of unsteady MHD oblique stagnation point flow and heat transfer due to an oscillating stream
T. Javed, A. Ghaffari, and H. Ahmad
International Islamic University, Islamabad, Pakistan
E-mail: abuzar.iiui@gmail.com
Keywords: MHD, oblique stagnation point, heat transfer, numerical solution
Pages: 383–391
Abstract
The unsteady stagnation point flow impinging obliquely on a flat plate
in presence of a uniform applied magnetic field due to an oscillating stream has been studied.
The governing partial differential equations are transformed into dimensionless
form and the stream function is expressed in terms of Hiemenz and tangential
components. The dimensionless partial differential equations are solved
numerically by using well-known implicit finite difference scheme named as
Keller-box method. The obtained results are compared with those available in
the literature. It is observed that the results are in excellent agreement with
the previous studies. The effects of pertinent parameters involved in the problem
namely magnetic parameter, Prandtl number and impinging angle on flow and heat
transfer characteristics are illustrated through graphs. It is observed that
the influence of magnetic field strength increases the fluid velocity and by
the increase of obliqueness parameter, the skin friction increases.
DOI: 10.1134/S0869864316030082
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