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Effect of variable viscosity on free flow of non-Newtonian power-law fluids along a vertical surface with thermal stratification

Effect of variable viscosity on free flow of non-Newtonian power-law fluids along a vertical... Abstract The aim of this paper is to investigate the effect of thermal stratification together with variable viscosity on free convection flow of non- Newtonian fluids along a nonisothermal semi infinite vertical plate embedded in a saturated porous medium. The governing equations of continuity, momentum and energy are transformed into nonlinear ordinary differential equations using similarity transformations and then solved by using the Runge-Kutta-Gill method along with shooting technique. Governing parameters for the problem under study are the variable viscosity, thermal stratification parameter, non-Newtonian parameter and the power-law index parameter.The velocity and temperature distributions are presented and discussed. The Nusselt number is also derived and discussed numerically. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Thermodynamics de Gruyter

Effect of variable viscosity on free flow of non-Newtonian power-law fluids along a vertical surface with thermal stratification

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Publisher
de Gruyter
Copyright
Copyright © 2013 by the
ISSN
1231-0956
eISSN
2083-6023
DOI
10.2478/v10173-012-0030-z
Publisher site
See Article on Publisher Site

Abstract

Abstract The aim of this paper is to investigate the effect of thermal stratification together with variable viscosity on free convection flow of non- Newtonian fluids along a nonisothermal semi infinite vertical plate embedded in a saturated porous medium. The governing equations of continuity, momentum and energy are transformed into nonlinear ordinary differential equations using similarity transformations and then solved by using the Runge-Kutta-Gill method along with shooting technique. Governing parameters for the problem under study are the variable viscosity, thermal stratification parameter, non-Newtonian parameter and the power-law index parameter.The velocity and temperature distributions are presented and discussed. The Nusselt number is also derived and discussed numerically.

Journal

Archives of Thermodynamicsde Gruyter

Published: Feb 14, 2013

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