Natural convective boundary-layer flow over a vertical cylinder embedded in a porous medium saturated with a nanofluid

被引：0
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作者：
Subba Reddy Gorla, Rama [1 ]
Khan, Waqar [2 ]
机构：
[1] Department of Mechanical Engineering, Cleveland State University, Cleveland
[2] Department of Engineering Sciences, PNS Jauhar, National University of Sciences and Technology
来源：
Subba Reddy Gorla, R. (r.gorla@csuohio.edu) | 1600年 / American Society of Mechanical Engineers (ASME), United States卷 / 03期
关键词：
nanofluid; natural convection; porous medium;
D O I：
10.1115/1.4007886
中图分类号：
学科分类号：
摘要：
In this paper, a boundary layer analysis is presented for the natural convection past a vertical cylinder in a porous medium saturated with a nanofluid. Numerical results for friction factor, surface heat transfer rate, and mass transfer rate have been presented for parametric variations of the buoyancy ratio parameter Nr, Brownian motion parameter Nb, thermophoresis parameter Nt, and Lewis number Le. The dependency of the friction factor, surface heat transfer rate (Nusselt number), and mass transfer rate on these parameters has been discussed. The results indicate that as Nr, Nb, and Nt increase, the friction factor and heat transfer rate (Nusselt number) decrease. The mass transfer rate (Sherwood number) increases with Le, Nb, and Nt. © 2013 American Society of Mechanical Engineers.
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