MHD viscoelastic fluid towards stagnation point on a vertical surface

Kartini Ahmad, Roslinda Mohd. Nazar

Research output: Contribution to journalArticle

Abstract

The steady two-dimensional magnetohydrodynamic (MHD) mixed convection flow near the stagnation point of a vertical surface in a viscoelastic fluid is investigated in this paper. The temperature of the wall is assumed to vary linearly with the distance from the stagnation point. The partial differential equations which governed the flow and thermal fields are transformed into a system of ordinary differential equations, which are then solved numerically using an implicit finite-difference scheme known as the Keller-box method. The numerical results for the local Nusselt number Nux and the skin friction coefficient Cf are obtained and discussed in detail for various physical parameters such as the magnetic parameter M, viscoelastic parameter K, Prandtl number Pr and mixed convection parameter l for both assisting (λ > 0) and opposing (λ < 0) flows. The numerical values obtained are shown in tables and features of the flow and heat transfer are presented in the form of graphs.

Original languageEnglish
Pages (from-to)37-43
Number of pages7
JournalAustralian Journal of Basic and Applied Sciences
Volume5
Issue number4
Publication statusPublished - Apr 2011

Fingerprint

stagnation point
magnetohydrodynamics
fluids
convection
skin friction
Prandtl number
Nusselt number
partial differential equations
coefficient of friction
boxes
flow distribution
differential equations
heat transfer
temperature

Keywords

  • Boundary layer
  • MHD
  • Mixed convection
  • Stagnation point
  • Viscoelastic fluid

ASJC Scopus subject areas

  • General

Cite this

MHD viscoelastic fluid towards stagnation point on a vertical surface. / Ahmad, Kartini; Mohd. Nazar, Roslinda.

In: Australian Journal of Basic and Applied Sciences, Vol. 5, No. 4, 04.2011, p. 37-43.

Research output: Contribution to journalArticle

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