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
收藏
页码：545 / 557
页数：13
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