A boundary layer analysis that has been presented for the heat and mass transfer in power-law nanofluids over a stretching surface with convective boundary condition are investigated numerically. The surface nanoparticle concentration is kept constant. A power-law model is used for non-Newtonian fluids, whereas Brownian motion and thermophoresis effects are incorporated in the nanofluid model. A similarity transformation is used to reduce mass, momentum, thermal energy, and nanoparticles concentration equations into nonlinear ordinary differential equations which are solved numerically by using a finite difference method. The effects of nanofluid parameters, suction/injection, and convective parameters and generalized Pr and Le numbers on dimensionless functions, skin friction, local Nusselt, and Sherwood numbers are shown graphically. The quantitative comparison of skin friction and heat transfer rates with the published results for special cases is shown in tabular form and is found in good agreement.
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November 2012
This article was originally published in
Journal of Heat Transfer
Research-Article
Heat and Mass Transfer in Power-Law Nanofluids Over a Nonisothermal Stretching Wall With Convective Boundary Condition
Waqar A. Khan,
Waqar A. Khan
1
Department of Engineering Sciences,
PN Engineering College,
e-mail: wkhan_2000@yahoo.com
PN Engineering College,
National University of Sciences and Technology
,Karachi 75350
, Pakistan
e-mail: wkhan_2000@yahoo.com
1Corresponding author.
Search for other works by this author on:
Rama Subba Reddy Gorla
Rama Subba Reddy Gorla
Department of Mechanical Engineering,
Cleveland State University
,Cleveland
, OH
44114
Search for other works by this author on:
Waqar A. Khan
Department of Engineering Sciences,
PN Engineering College,
e-mail: wkhan_2000@yahoo.com
PN Engineering College,
National University of Sciences and Technology
,Karachi 75350
, Pakistan
e-mail: wkhan_2000@yahoo.com
Rama Subba Reddy Gorla
Department of Mechanical Engineering,
Cleveland State University
,Cleveland
, OH
44114
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received January 16, 2012; final manuscript received June 26, 2012; published online September 26, 2012. Assoc. Editor: Oronzio Manca.
J. Heat Transfer. Nov 2012, 134(11): 112001 (7 pages)
Published Online: September 28, 2012
Article history
Received:
January 16, 2012
Revision Received:
June 26, 2012
Citation
Khan, W. A., and Reddy Gorla, R. S. (September 28, 2012). "Heat and Mass Transfer in Power-Law Nanofluids Over a Nonisothermal Stretching Wall With Convective Boundary Condition." ASME. J. Heat Transfer. November 2012; 134(11): 112001. https://doi.org/10.1115/1.4007138
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