Combined Effect of Buoyancy Force and Navier Slip on Entropy Generation in a Vertical Porous Channel

被引：32

作者：

Eegunjobi, Adetayo Samuel ^{[1
]}

Makinde, Oluwole Daniel ^{[1
]}

机构：

[1] Cape Peninsula Univ Technol, Inst Adv Res Math Modelling & Computat, ZA-7535 Bellville, South Africa

来源：

ENTROPY | 2012年 / 14卷 / 06期

关键词：

buoyancy force; Navier slip; porous channel; suction/injection; entropy generation; irreversibility; NATURAL-CONVECTION; PREMIXED HYDROGEN; FLOW; TEMPERATURE;

D O I：

10.3390/e14061028

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we investigate the combined effects of buoyancy force and Navier slip on the entropy generation rate in a vertical porous channel with wall suction/injection. The nonlinear model problem is tackled numerically using Runge-Kutta-Fehlberg method with shooting technique. Both the velocity and temperature profiles are obtained and utilized to compute the entropy generation number. The effects of slip parameter, Brinkmann number, the Peclet number and suction/injection Reynolds number on the fluid velocity, temperature profile, Nusselt number, entropy generation rate and Bejan number are depicted graphically and discussed quantitatively.

引用

页码：1028 / 1044

页数：17

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