Model for heat conduction in nanofluids

被引：451

作者：

Kumar, DH ^{[1
]}

Patel, HE

Kumar, VRR

Sundararajan, T

Pradeep, T

Das, SK

机构：

[1] Indian Inst Technol, Dept Mech Engn, Madras 600036, Tamil Nadu, India

[2] Indian Inst Technol, Dept Chem, Madras 600036, Tamil Nadu, India

[3] Indian Inst Technol, Sophisticated Analyt Instrument Facil, Madras 600036, Tamil Nadu, India

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.93.144301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A comprehensive model has been proposed to account for the large enhancement of thermal conductivity in nanofluids and its strong temperature dependence, which the classical Maxwellian theory has been unable to explain. The dependence of thermal conductivity on particle size, concentration, and temperature has been taken care of simultaneously in our treatment. While the geometrical effect of an increase in surface area with a decrease in particle size, rationalized using a stationary particle model, accounts for the conductivity enhancement, a moving particle model developed from the Stokes-Einstein formula explains the temperature effect. Predictions from the combined model agree with the experimentally observed values of conductivity enhancement of nanofluids.

引用

页码：144301 / 1

页数：4

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