To read this content please select one of the options below:

Non‐equilibrium molecular dynamics simulation of the thermal conductivity of crystals film

Baodong Shao (Research Institute of Satellite Technology, Harbin Institute of Technology, Harbin, China)
Zhaowei Sun (Research Institute of Satellite Technology, Harbin Institute of Technology, Harbin, China)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 March 2006

684

Abstract

Purpose

To give a new method to calculate the thermal conductivity of thin films which thickness is less than micro‐nanometer when non‐Fourier effect will appear in heat conduction and Fourier law is not applicable for calculating the thermal conductivity.

Design/methodology/approach

The Cattaneo equation based on the heat flow relaxation time approximation is used to calculate the thermal conductivity.

Findings

The results show that the thermal conductivity is not the thermophysical properties of material, but is the non‐linear function of temperature and film thickness when the dimension of film is less than micro‐nanometer.

Research limitations/implications

The application of this method is limited by little experimental data of heat flow relaxation time for materials other than Ar crystals.

Originality/value

The paper demonstrates how the thermal conductivity of Ar crystals film can be calculated by NEMD algorithm and considers the non‐Fourier effect in the simulation.

Keywords

Citation

Shao, B. and Sun, Z. (2006), "Non‐equilibrium molecular dynamics simulation of the thermal conductivity of crystals film", Aircraft Engineering and Aerospace Technology, Vol. 78 No. 2, pp. 138-141. https://doi.org/10.1108/17488840610653450

Publisher

:

Emerald Group Publishing Limited

Copyright © 2006, Emerald Group Publishing Limited

Related articles