## THERMAL SCIENCE

International Scientific Journal

### FREE CONVECTION AROUND A SLENDER PARABOLOID OF NON-NEWTONIAN FLUID IN A POROUS MEDIUM

**ABSTRACT**

This paper emphasizes the radiative heat transfer of non-Newtonian fluid on free convection around a slender paraboloid in a non-Darcy porous medium. The Ostwald-de Waele power-law representation is employed to express the non-Newto¬nian behavior of fluid. Similarity analysis is applied to transform the set of non-dimensional PDE into set of ODE and then the resulting system of equations are solved by 4th order Runge-Kutta scheme with Shooting technique. The control of pertinent parameters on velocity, temperature and non-dimensional heat transfer rates are analyzed through graphical representation and explored in detail. It is evident that as the radius of the slender body increases the heat transfer coefficient decreases but the role of radiation on heat transfer rate getting reduced for all feasible values of the power-law index parameter.

**KEYWORDS**

PAPER SUBMITTED: 2017-08-09

PAPER REVISED: 2018-01-02

PAPER ACCEPTED: 2018-01-19

PUBLISHED ONLINE: 2018-02-18

**THERMAL SCIENCE** YEAR

**2019**, VOLUME

**23**, ISSUE

**Issue 5**, PAGES [3067 - 3074]

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