Mhd Mixed Convection Heat Transfer In A Vertical Channel With Temperature-Dependent Transport Properties

Keywords

Keller-box method; Mixed convection; Variable fluid properties; Viscous dissipation

Abstract

An analysis is carried out to study the effects of temperature-dependent transport properties on the fully developed free and forced MHD convection flow in a vertical channel. In this model, viscous and Ohmic dissipation terms are also included. The governing nonlinear equations (in non-dimensional form) are solved numerically by a second order finite difference scheme. A parametric study is performed in order to illustrate the interactive influences of the model parameters; namely, the magnetic parameter, the variable viscosity parameter, the mixed convection parameter, the variable thermal conductivity parameter, the Brinkmann number and the Eckert number. The velocity field, the temperature field, the skin friction and the Nusselt number are evaluated for several sets of values of these parameters. For some special cases, the obtained numerical results are compared with the available results in the literature: Good agreement is found. Of all the parameters, the variable thermo-physical transport property has the strongest effect on the drag, heat transfer characteristics, the stream-wise velocity, and the temperature field.

Publication Date

1-1-2015

Publication Title

Journal of Applied Fluid Mechanics

Volume

8

Issue

4

Number of Pages

693-701

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.18869/acadpub.jafm.67.223.21562

Socpus ID

84941264755 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84941264755

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