Flow and heat transfer of nanofluids at a stagnation point flow over a stretching/shrinking surface in a porous medium with thermal radiation

    Authors

    D. Pal; G. Mandal;K. Vajravelu

    Comments

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    Abbreviated Journal Title

    Appl. Math. Comput.

    Keywords

    Nanofluids; Porous medium; Stagnation-point flow; Thermal radiation; Viscous dissipation; BOUNDARY-LAYER-FLOW; VISCOUS DISSIPATION; NATURAL-CONVECTION; SHEET; SUCTION; ABSORPTION/GENERATION; PLATE; Mathematics, Applied

    Abstract

    In this paper, the effects of thermal radiation and viscous dissipation on a stagnation point flow and heat transfer over a flat stretching/shrinking surface in nanofluids are analyzed. The effects of suction/injection are also considered. Using a similarity transformation, the governing equations are transformed into a system of nonlinear ordinary differential equations. The resulting system is then solved numerically by Runge-Kutta-Fehlberg method with shooting technique. It is observed that the local Nusselt number increases with increment in the suction/injection parameter for stretching sheet whereas reverse effect is observed for shrinking sheet. It is found that skin-friction coefficient increases for both stretching/shrinking sheet with increase in volume fraction of the nanoparticles. (C) 2014 Elsevier Inc. All rights reserved.

    Journal Title

    Applied Mathematics and Computation

    Volume

    238

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    208

    Last Page

    224

    WOS Identifier

    WOS:000336522400019

    ISSN

    0096-3003

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