THERMAL SCIENCE

International Scientific Journal

Mohammad Mehdi Rashidi

,

Amir Basiri Parsa

,

Leila Shamekhi

,

Ebrahim Momoniat

ENTROPY GENERATION ANALYSIS OF THE REVISED CHENG-MINKOWYCZ PROBLEM FOR NATURAL CONVECTIVE BOUNDARY LAYER FLOW OF NANOFLUID IN A POROUS MEDIUM

ABSTRACT
The similar solution on the equations of the revised Cheng-Minkowycz problem for natural convective boundary layer flow of nanofluid through a porous medium gives (using an analytical method), a system of non-linear partial differential equations which are solved by optimal homotopy analysis method. Effects of various drastic parameters on the fluid and heat transfer characteristics have been analyzed. A very good agreement is observed between the obtained results and the numerical ones. The entropy generation has been derived and a comprehensive parametric analysis on that has been done. Each component of the entropy generation has been analyzed separately and the contribution of each one on the total value of entropy generation has been determined. It is found that the entropy generation as an important aspect of the industrial applications has been affected by various parameters which should be controlled to minimize the entropy generation.
KEYWORDS
entropy generation, nanofluid, optimal homotropy analysis method, porous media
PAPER SUBMITTED: 2014-10-10
PAPER REVISED: 2015-01-21
PAPER ACCEPTED: 2015-02-02
PUBLISHED ONLINE: 2015-08-02
DOI REFERENCE: https://doi.org/10.2298/TSCI15S1S69R
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Supplement 1, PAGES [S169 - S178]
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Entropy generation analysis of the revised Cheng-Minkowycz problem for natural convective boundary layer flow of nanofluid in a porous medium

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