Rayleigh-Benard convection in nanofluids: Effect of temperature dependent properties
Rayleigh-Benard convection in nanofluids: Effect of temperature dependent properties
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DOI：
10.1016/j.ijthermalsci.2011.04.003
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发表时间：
2011-09-01
影响因子：
4.5
通讯作者：
Abu-Nada, Eiyad
中科院分区：
文献类型：
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作者：
Abu-Nada, Eiyad
本文利用Rayleigh-Benard对流问题研究了CuO-水纳米流体在自然对流中的强化换热。目前的研究主要集中在纳米流体的可变导热系数和可变粘度对自然对流换热强化的影响。结果表明，纳米颗粒的瑞利数(Ra=10(3)-10(6))和体积分数(0 10(3))对平均Nusselt数比导热系数模型更敏感。(C)2011年爱思唯尔·马森公司。版权所有。
In this work, heat transfer enhancement using CuO-water nanofluids in natural convection using the Rayleigh-Benard convection problem is investigated. The main focus of the current study is on the effects of variable thermal conductivity and variable viscosity of nanofluids on heat transfer enhancement in natural convection. The results are presented over a wide range of Rayleigh numbers (Ra = 10(3)-10(6)) and volume fractions of nanoparticles (0 10(3) the average Nusselt number was much more sensitive to the viscosity models than to the thermal conductivity models. (C) 2011 Elsevier Masson SAS. All rights reserved.