Transient natural convection flow of a nanofluid over a vertical cylinder

被引：0
|
作者：
Ali J. Chamkha
A. M. Rashad
Abdelraheem M. Aly
机构：
[1] The Public Authority for Applied Education and Training,Manufacturing Engineering Department
[2] South Valley University,Department of Mathematics, Faculty of Science
[3] South Valley University,Department of Mathematics, Faculty of Science
[4] Kyushu University,Civil Engineering Department, Faculty of Engineering
来源：
Meccanica | 2013年 / 48卷
关键词：
Unsteady boundary layer; Free convection; Nanofluid; Vertical cylinder;
D O I：
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中图分类号：
学科分类号：
摘要：
An analysis is performed to study unsteady free convective boundary layer flow of a nanofluid over a vertical cylinder. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The governing equations are formulated and a numerical solution is obtained by using an explicit finite-difference scheme of the Crank-Nicolson type. The solutions at each time step have been found to reach the steady state solution properly. Numerical results for the steady-state velocity, temperature and nanoparticles volume fraction profiles as well as the axial distributions and the time histories of the skin-friction coefficient, Nusselt number and the Sherwood number are presented graphically and discussed.
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页码：71 / 81
页数：10
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