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Technical Brief

Second Law Analysis of Boundary Layer Flow with Variable Fluid Properties

[+] Author and Article Information
Idrees Afridi

Department of Mathematics, COMSATS Institute of Information Technology, Park Road, ChakShahzad, Islamabad, Pakistan
idreesafridi313@gmail.com

Muhammad Qasim

Department of Mathematics, COMSATS Institute of Information Technology, Park Road, ChakShahzad, Islamabad, Pakistan
mq_qau@yahoo.com

O.D Makinde

Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa
makinded@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4036645 History: Received October 06, 2016; Revised April 26, 2017

Abstract

An entropy generation analysis of steady MHD boundary layer flow of viscous fluid with variable properties over an exponentially stretching sheet is presented. The basic nonlinear partial differential equations that govern the flow are reduced to ordinary differential equations (local similarity equations) using appropriate transformation. Numerical solutions are obtained using shooting technique along with Runge-Kutta method. Expression for the dimensionless volumetric entropy generation rate is obtained via local similarity transformation. The effects of different dimensionless emerging parameters on velocity , temperature profile ?(?), entropy generation number Ns and Bejan number Be are investigated graphically in detail.

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