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Non‐Darcy mixed convection flow along a vertical plate embedded in a non‐Newtonian fluid saturated porous medium with surface mass transfer

Non‐Darcy mixed convection flow along a vertical plate embedded in a non‐Newtonian fluid... The present analysis investigates the non‐Darcy mixed convection of a non‐Newtonian fluid from a vertical isothermal plate embedded in a homogeneous porous medium, in the presence of surface injection or suction. After a suitable coordinate transformation to reduce the complexity of the governing boundary‐layer equations, the resulting nonlinear, coupled differential equations were solved with an implicit finite difference scheme. The value of mixed convection parameter १ lies between 0 and 1 . In addition, the power‐law model is used for non‐Newtonian fluids with exponent n< 1 for pseudoplastic fluids; n= 1 for Newtonian fluids; and n> 1 for dilatant fluids. The effects of the mixed‐convection parameter १, the power‐law viscosity index n, the suction/injection parameter क़, and the non‐Darcy parameter Re* on the velocity and temperature profiles, and the local Nusselt number are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Numerical Methods for Heat and Fluid Flow Emerald Publishing

Non‐Darcy mixed convection flow along a vertical plate embedded in a non‐Newtonian fluid saturated porous medium with surface mass transfer

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References (18)

Publisher
Emerald Publishing
Copyright
Copyright © 2000 MCB UP Ltd. All rights reserved.
ISSN
0961-5539
DOI
10.1108/09615530010327387
Publisher site
See Article on Publisher Site

Abstract

The present analysis investigates the non‐Darcy mixed convection of a non‐Newtonian fluid from a vertical isothermal plate embedded in a homogeneous porous medium, in the presence of surface injection or suction. After a suitable coordinate transformation to reduce the complexity of the governing boundary‐layer equations, the resulting nonlinear, coupled differential equations were solved with an implicit finite difference scheme. The value of mixed convection parameter १ lies between 0 and 1 . In addition, the power‐law model is used for non‐Newtonian fluids with exponent n< 1 for pseudoplastic fluids; n= 1 for Newtonian fluids; and n> 1 for dilatant fluids. The effects of the mixed‐convection parameter १, the power‐law viscosity index n, the suction/injection parameter क़, and the non‐Darcy parameter Re* on the velocity and temperature profiles, and the local Nusselt number are discussed.

Journal

International Journal of Numerical Methods for Heat and Fluid FlowEmerald Publishing

Published: Jun 1, 2000

Keywords: Porous media; Heat transfer; Non‐Newtonian fluids

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