Analysis of Entropy Generation in a Generalized Couette Flow between Two Concentric Pipes with Buoyancy Effect

Authors

  • A. S. Eegunjobi Namibia University of Science and Technology, Private Bag 13388, 13 Storch Street, Windhoek, Namibia
  • O. D. Makinde Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa
  • A. P. Oluwagunwa Rufus Giwa Polytechnic, Owo, Ondo State, Nigeria

DOI:

https://doi.org/10.15377/2409-5826.2016.03.01.3

Keywords:

Generalized couette flow, concentric pipe annulus, variable viscosity, bouyancy force, heat transfer, entropy generation.

Abstract

 Heat transfer and entropy generation analysis in buoyancy driven generalized Couette flow of variable viscosity fluid within the annulus of two concentric cylindrical pipes are theoretically investigated. It is assumed that the inner cylinder is fixed while the outer one is subjected to axial motion. The governing nonlinear equation models are obtained and solved numerically using shooting quadrature. The results for velocity and temperature profiles are utilized to compute entropy generation number and the Bejan number. Relevant results are displayed graphically and discussed quantitatively.

Author Biographies

A. S. Eegunjobi, Namibia University of Science and Technology, Private Bag 13388, 13 Storch Street, Windhoek, Namibia

Department of Mathematics and Statistics

O. D. Makinde, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa

Faculty of Military Science

A. P. Oluwagunwa, Rufus Giwa Polytechnic, Owo, Ondo State, Nigeria

Department of Mathematics and Statistics

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Published

2016-07-13

How to Cite

1.
A. S. Eegunjobi, O. D. Makinde, A. P. Oluwagunwa. Analysis of Entropy Generation in a Generalized Couette Flow between Two Concentric Pipes with Buoyancy Effect. J. Adv. Therm. Sci. Res. [Internet]. 2016Jul.13 [cited 2021Sep.26];3(1):24-32. Available from: https://www.avantipublishers.com/jms/index.php/jatsr/article/view/855

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