THERMAL SCIENCE

International Scientific Journal

Elsayed M. A Elbashbeshy

,

Nabil T. M Eldabe

,

Ismail K. Youssef

,

Ahmed M. Sedki

EFFECTS OF PRESSURE STRESS WORK AND THERMAL RADIATION ON FREE CONVECTION FLOW AROUND A SPHERE EMBEDDED IN A POROUS MEDIUM WITH NEWTONIAN HEATING

ABSTRACT
The effects of pressure stress work and thermal radiation on free convection flow around a sphere embedded in a porous medium with Newtonian heating is considered. The basic equations of boundary-layer are transformed into a non-dimensional form and reduced to non-linear system of partial differential equations and solved numerically using an implicit finite difference technique with Newtons linearization method. Comparisons with previously published work are performed and excellent agreement is obtained. Numerical results have been shown graphically and tabular forms for some selected values of parameters set consisting of radiation parameter, pressure stress work parameter, Newtonian heating coefficient, and Prandtl number.
KEYWORDS
porous medium, free convection, pressure work, thermal radiation, Newtonian heating
PAPER SUBMITTED: 2015-06-01
PAPER REVISED: 2016-08-16
PAPER ACCEPTED: 2016-08-18
PUBLISHED ONLINE: 2016-09-05
DOI REFERENCE: https://doi.org/10.2298/TSCI150601207E
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 1, PAGES [401 - 412]
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Effects of pressure stress work and thermal radiation on free convection flow around a sphere embedded in a porous medium with Newtonian heating

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