Entropy generation in pressure gradient assisted Couette flow with different thermal boundary conditions
type: Item
instance of: scholarly article
title: Entropy generation in pressure gradient assisted Couette flow with different thermal boundary conditions
zbMATH Open document ID: 1135.76307
author: A. Aziz
published in: Entropy
publication date: 2008-05-22T00:00:00Z
review text: Summary: The present paper is concerned with an analytical study of entropy generation in viscous, incompressible Couette flow between a stationary plate and a moving plate. The flow induced by the moving plate is assisted by a constant pressure gradient along the flow direction. Four different combinations of thermal boundary conditions are investigated: (a) plates at different temperatures, (b) stationary plate at a fixed temperature and moving plate subjected to a constant heat flux, (c) stationary plate at a fixed temperature and convection at the moving plate, and (d) convection at both plates. Besides the velocity and temperature profiles, dimensionless results are presented for the entropy generated due to heat transfer, the entropy generated due to viscous dissipation, and the total entropy generation. These results illustrate the effect of pressure gradient, temperature asymmetry, heat flux, convection Biot numbers, and ambient temperatures. For certain combinations of thermal variables, the total entropy generated is minimized.
Mathematics Subject Classification ID: 76A99
zbMATH DE Number: 5278282
zbMATH Keywords: entropy
zbMATH Keywords: Couette flow
zbMATH Keywords: pressure gradient
zbMATH Keywords: thermal boundary conditions
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.3390/e8020050
OpenAlex ID: W2166839809
DOI: 10.3390/E8020050
description: scientific article; zbMATH DE number 5278282