A fractal model for heat transfer of nanofluids by convection in a pool

被引：49
作者：
Xiao, Boqi [1 ]
Yu, Boming [2 ]
Wang, Zongchi [1 ]
Chen, Lingxia [1 ]
机构：
[1] Sanming Univ, Dept Phys & Electromech Engn, Sanming 365004, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
来源：
PHYSICS LETTERS A | 2009年 / 373卷 / 45期
关键词：
Fractal; Nanofluid; Convection; Heat transfer; EFFECTIVE THERMAL-CONDUCTIVITY; POROUS-MEDIA; NANO-FLUIDS; NANOPARTICLES; ENHANCEMENT; WATER;
D O I：
10.1016/j.physleta.2009.09.020
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on the fractal distribution of nanoparticles, a fractal model for heat transfer of nanofluids is presented in the Letter. Considering heat convection between nanoparticles and liquids due to the Brownian motion of nanoparticles in fluids, the formula of calculating heat flux of nanofluids by convection is given. The proposed model is expressed as a function of the average size of nanoparticle, concentration of nanoparticle, fractal dimension of nanoparticle, temperature and properties of fluids. It is shown that the fractal model is effectual according to a good agreement between the model predictions and experimental data. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：4178 / 4181
页数：4
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