Brownian Dynamics Simulation to Determine the Effective Thermal Conductivity of Nanofluids

Publication Type

Journal Article

Date Published

06/2004

Abstract

A nanofluid is a fluid containing suspended solid particles, with sizes on the order of nanometers. Normally, nanofluids have higher thermal conductivities than their base fluids. Therefore, it is of interest to predict the effective thermal conductivity of such a nanofluid under different conditions, especially since only limited experimental data are available. We have developed a technique to compute the effective thermal conductivity of a nanofluid using Brownian dynamics simulation, which has the advantage of being computationally less expensive than molecular dynamics, and have coupled that with the equilibrium Green-Kubo method. By comparing the results of our calculation with the available experimental data, we show that our technique predicts the thermal conductivity of nanofluids to a good level of accuracy.

Journal

Journal of Applied Physics

Volume

95

Year of Publication

2004
6492

Issue

11

Pagination

6492–6494
Research Areas