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Research Journal of Science and Technology
Year : 2017, Volume : 9, Issue : 4
First page : ( 525) Last page : ( 531)
Print ISSN : 0975-4393. Online ISSN : 2349-2988.
Article DOI : 10.5958/2349-2988.2017.00090.0

Numerical Exploration of Non-Newtonian Polymeric Boundary Layer Flow over an Isothermal Sphere

Fazuruddin Syed1,2,*, Sreekanth S1, Raju GSS2

1Department of Mathematics, Sreenivasa Institute of Technology and Management Studies, Chittoor-517001, India

2Department of Mathematics, JNTUA College of Engineering, Pulivendula-516390, Andhra Pradesh, India

*Corresponding Author E-mail: fazuruddinsyed@gmail.com

Online published on 12 June, 2018.

Abstract

This paper examines the nonlinear steady state boundary layer flow and heat transfer of an incompressible Jeffery non-Newtonian fluid from an isothermal sphere. The governing partial differential equations of the flow field are converted to a system of non-linear coupled non-similarity ordinary differential equations. Finite difference technique followed by Keller Box method, the system is solved numerically. The numerical code is validated with previous studies. The effects of the various physical parameters countered in the flow field on the velocity, temperature as well as the skin friction coefficient and the rate of heat transfer near the wall are computed and illustrated graphically. It is found that increasing suction decelerates the flow and also cools the boundary layer i.e. reduces temperatures. With increasing tangential coordinate the flow is also decelerated whereas the temperatures are enhanced. The simulation is relevant to polymer coating thermal processing. Polymeric enrobing flows are important in industrial manufacturing technology and process systems. Such flows are non-Newtonian. Motivated by such applications, we did the present problem.

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Keywords

Polymers, heat transfer, skin friction, Deborah number, Suction.

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