ORIGINAL PAPER
Effects of Pressure Gradient on Convective Heat Transfer in a Boundary Layer Flow of a Maxwell Fluid Past a Stretching Sheet
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1
Department of Mathematical Sciences, Faculty of Science, Federal Urdu University of Arts Science & Technology, Karachi, Pakistan
 
2
Department of Mathematics, College of Science and Arts, King Abdul-Aziz University, 21911, Rabigh, Saudi Arabia
 
3
School of Applied Sciences and Mathematics, Universiti Teknologi Brunei, Jalan Tungku Link Gadong, BE1410, Brunei Darussalam
 
4
Faculty of Entrepreneurship and Business, Universiti Malaysia Kelantan, Pengkalan Chepa, 16100 Kota, Bharu, Kelantan, Malaysia
 
5
Ship & Offshore Extreme Technology Industry-Academy Cooperation Research Centre, Department of Naval Architecture & Ocean Engineering, Inha University, 100 Inha ro, Micheulol-gu, Incheon, Republic Of Korea, E-mail: visu20@yahoo.com
 
 
Online publication date: 2021-08-26
 
 
Publication date: 2021-09-01
 
 
International Journal of Applied Mechanics and Engineering 2021;26(3):104-118
 
KEYWORDS
ABSTRACT
The pressure gradient term plays a vital role in convective heat transfer in the boundary layer flow of a Maxwell fluid over a stretching sheet. The importance of the effects of the term can be monitored by developing Maxwell’s equation of momentum and energy with the pressure gradient term. To achieve this goal, an approximation technique, i.e. Homotopy Perturbation Method (HPM) is employed with an application of algorithms of Adams Method (AM) and Gear Method (GM). With this approximation method we can study the effects of the pressure gradient (m), Deborah number (β), the ratio of the free stream velocity parameter to the stretching sheet parameter (ɛ) and Prandtl number (Pr) on both the momentum and thermal boundary layer thicknesses. The results have been compared in the absence and presence of the pressure gradient term m . It has an impact of thinning of the momentum and boundary layer thickness for non-zero values of the pressure gradient. The convergence of the system has been taken into account for the stretching sheet parameter ɛ. The result of the system indicates the significant thinning of the momentum and thermal boundary layer thickness in velocity and temperature profiles. On the other hand, some results show negative values of f '(η) and θ (η) which indicates the case of fluid cooling.
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