Numerical investigation into entropy generation in a transient generalized Couette flow of nanofluids with convective cooling

被引：0
|
作者：
M H MKWIZU
O D MAKINDE
YAW NKANSAH-GYEKYE
机构：
[1] Nelson Mandela African Institution of Science and Technology,School of Computational and Communication Science and Engineering
[2] (NM-AIST),Faculty of Military Science
[3] Stellenbosch University,Department of Biometry and Mathematics
[4] Sokoine University of Agriculture,undefined
来源：
Sadhana | 2015年 / 40卷
关键词：
Channel flows; nanofluids; Couette flow; entropy generation; Bejan number;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This work investigates the effects of convective cooling on entropy generation in a transient generalized Couette flow of water-based nanofluids containing Copper (Cu) and Alumina (Al 2O3) as nanoparticles. Both First and Second Laws of thermodynamics are utilised to analyse the problem. The model partial differential equations for momentum and energy balance are tackled numerically using a semi-discretization finite difference method together with Runge–Kutta Fehlberg integration scheme. Graphical results on the effects of parameter variation on velocity, temperature, skin friction, Nusselt number, entropy generation rate, irreversibility ratio and Bejan number are presented and discussed.
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页码：2073 / 2093
页数：20
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