Relationship between the thermal conductivity and shear viscosity of nanofluids

被引：31

作者：

Ding, Yulong ^{[1
]}

Chen, Haisheng ^{[1
]}

Musina, Zenfira ^{[1
]}

Jin, Yi ^{[1
]}

Zhang, Tianfu ^{[1
]}

Witharana, Sanjeeva ^{[1
]}

Yang, Wei ^{[1
]}

机构：

[1] Univ Leeds, Inst Particle Sci & Engn, Leeds LS2 9JT, W Yorkshire, England

来源：

PHYSICA SCRIPTA | 2010年 / T139卷

基金：

英国工程与自然科学研究理事会;

关键词：

CONVECTIVE HEAT-TRANSFER; AQUEOUS SUSPENSIONS; CARBON NANOTUBES; RHEOLOGICAL BEHAVIOR; BROWNIAN-MOTION; FLOW BEHAVIOR; ENHANCEMENT; MODEL; TRANSPORT; PARTICLES;

D O I：

10.1088/0031-8949/2010/T139/014078

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nanofluids are dilute liquid suspensions of nanoparticles. Nanoparticles and liquid media, in such fluids, mix and interact at the nanoscale. Interactions between nanoparticles in nanofluids can lead to structuring of the particles. This paper discusses how the nanoparticle structuring affects the thermal conductivity and viscosity of nanofluids and how the two transport properties are related through the nanoparticle structuring. It is shown that the experimentally measured thermal conductivity enhancement and the viscosity increase due to the presence of nanoparticles can be interpreted by the aggregation of nanoparticles. It is also shown that modification of the conventional form of the effective medium theory by taking into account nanoparticle structuring information from the rheological analyses gives good agreement with experimentally measured thermal conductivity.

引用

页数：7

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