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

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

Authors: A. S. Eegunjobi, O. D. Makinde, A. P. Oluwagunwa

Journal: Journal of advanced thermal science research.

HEC Recognition History
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Year: 2016

Volume: 3

Issue: 1

Language: en

DOI: 10.15377/2409-5826.2016.03.01.3

Keywords: Generalized couette flowconcentric pipe annulusvariable viscositybouyancy forceheat transferentropy generation.

Categories
Fluid Dynamics (835) Heat Transfer (461) Thermodynamics (730) Urban Economics (65) Transportation Planning (26) Mechanical Engineering (4477) Leisure Studies (30) Statistics (8857) Economics (27414) Chemical Engineering (4680)

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.

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