Irreversibility analysis of unsteady couette flow with variable viscosity

被引：0
作者：
A. S. Eegunjobi
O. D. Makinde
M. S. Tshehla
O. Franks
机构：
[1] Namibia University of Science and Technology,Department of Mathematics and Statistics
[2] Stellenbosch University,Faculty of Military Science
[3] Nelson Mandela Metropolitan University,Faculty of Engineering Built Environment and Information Technology
来源：
Journal of Hydrodynamics | 2015年 / 27卷
关键词：
parallel plates; variable viscosity; heat transfer; Couette flow; entropy generation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper investigates numerically the inherent irreversibility in unsteady generalized Couette flow between two parallel plates with variable viscosity. The nonlinear governing equations are derived from the Navier-Stokes equations and solved numerically using a semi-discretization finite difference method together with the Runge-Kutta-Fehlberg integration scheme. The profiles of velocity and the temperature obtained are used to compute the entropy generation number, Bejan number, skin friction and Nusselt number. The effects of embedded parameters on entire flow structure are presented graphically and discussed quantitatively.
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页码：304 / 310
页数：6
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