Original scientific paper

Time varying rotating disk flow and heat transfer through a porous medium of a non-Newtonian fluid with suction and injection

Hazem Ali Attia ; Department of Engineering, Mathematics and Physics, Faculty of Engineering, El-Fayoum University, El-Fayoum 63514, EGYPT
Mostafa A.M. Abdeen ; Department of Engineering, Mathematics and Physics, Faculty of Engineering, Cairo University, Giza 12211, EGYPT
Nabil A. AwadAllah ; Department of Civil Engineering, Faculty of Engineering, El-Fayoum University, El-Fayoum 63514, EGYPT

Abstract

The time varying flow of an incompressible viscous non-Newtonian fluid above an infinite rotating porous disk in a porous medium is studied with heat transfer. A uniform injection or suction is applied through the surface of the disk. Numerical solutions of the nonlinear partial differential equations which govern the hydrodynamics and energy transfer are obtained. The effect of the porosity of the medium, the characteristics of the non-Newtonian fluid and the suction or injection velocity on the velocity and temperature fields is considered.

Keywords

rotating disk flow; heat transfer; porous medium; non-Newtonian fluid; uniform inflow; numerical solution

Hrčak ID:

184971

URI

https://hrcak.srce.hr/184971

Publication date:

26.10.2012.

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