The effects of variable fluid properties on the hydro-magnetic flow and heat transfer over a non-linearly stretching sheet

    Authors

    K. V. Prasad; K. Vajravelu;P. S. Datti

    Comments

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    Abbreviated Journal Title

    Int. J. Therm. Sci.

    Keywords

    Boundary layer flow; Similarity solution; Variable viscosity; Variable; thermal conductivity; Stretching sheet; Skin friction; Nusselt number; BOUNDARY-LAYER BEHAVIOR; CONTINUOUS SOLID SURFACES; CONTINUOUS MOVING; SURFACE; MASS-TRANSFER; HYDROMAGNETIC FLOW; FLAT-PLATE; VISCOSITY; SUCTION; TEMPERATURE; CONVECTION; Thermodynamics; Engineering, Mechanical

    Abstract

    The influence of temperature-dependent fluid properties on the hydro-magnetic flow and heat transfer over a stretching surface is studied. The stretching velocity and the transverse magnetic field are assumed to vary as a power of the distance from the origin. It is assumed that the fluid viscosity and the thermal conductivity vary as an inverse function and linear function of temperature, respectively. Using the similarity transformation, the governing coupled non-linear partial differential equations are transformed into coupled non-linear ordinary differential equations and are solved numerically by the Keller-Box method. The governing equations of the problem show that the flow and heat transfer characteristics depend on five parameters, namely the stretching parameter, viscosity parameter, magnetic parameter, variable thermal conductivity parameter, and the Prandtl number. The numerical values obtained for the velocity, temperature, skin friction, and the Nusselt number are presented through graphs and tables for several sets of values of the parameters. The effects of the parameters on the flow and heat transfer characteristics are discussed. (C) 2009 Elsevier Masson SAS. All rights reserved.

    Journal Title

    International Journal of Thermal Sciences

    Volume

    49

    Issue/Number

    3

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    603

    Last Page

    610

    WOS Identifier

    WOS:000274122500015

    ISSN

    1290-0729

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