The validity of using the microscopic hyperbolic heat conduction model under a harmonic fluctuating boundary heating source

被引：18

作者：

Naji, M ^{[1
]}

Al-Nimr, MA ^{[1
]}

Hader, M ^{[1
]}

机构：

[1] Jordan Univ Sci & Technol, Dept Mech Engn, Irbid 22110, Jordan

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2003年 / 24卷 / 02期

关键词：

hyperbolic microscopic model; hyperbolic two-step heat conduction model; macroscopic heat conduction; microscopic heat conduction; two-step heat conduction model;

D O I：

10.1023/A:1022984324606

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The validity of using the microscopic hyperbolic heat conduction model under a harmonic fluctuating boundary heating source is investigated. It is found that using the microscopic hyperbolic heat conduction model is essential when (omega) over barC(l)/G > 0.1. The phase shift between the electron-gas and solid-lattice temperatures is found to be tan(-1)((omega) over barC(l)/G). This phase shift reaches a fixed value of 1.5708 rad at very large values of (omega) over barC(l)/G. It is found that the use of the microscopic hyperbolic heat conduction model is essential when (omega) over bar > 1 x 10(9) rad . s(-1) for most metallic layers independent of their thickness.

引用

页码：545 / 557

页数：13

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