| 非傅里叶导热现象的双元相滞后模型剖析 |
| |
| 引用本文： | 蒋方明 刘登瀛. 非傅里叶导热现象的双元相滞后模型剖析[J]. 上海理工大学学报, 2001, 23(3): 197-200 |
| |
| 作者姓名： | 蒋方明 刘登瀛 |
| |
| 作者单位： | 中国科学院工程热物理所 |
| |
| 基金项目： | 国家自然科学基金重点基金资助项目(59736130)，中国科学院“九五”基础性研究重大项目资金资助项目(KJ 951-B1-704)，国家重点基础研 |
| |
| 摘 要： | 针对实验观察到的多孔材料内的非傅里叶导热现象，采用双元相滞后（Dual-phaseLag)模型来描述多孔材料内的非傅里叶导热过程并进行了数值求解，求解结果表明，若τT和τq取值恰当，双元相滞后模性地预测实验型可以定后观察到的非傅里叶导热现象；变化τT和τq的相对数值，介质中的非傅里叶导热将表现为不同的形式，据此，文中对非傅里叶导热进行了较为全面的定义，指出了非傅里叶导热与传统意义上的热波并非等价。
|
| 关 键 词： | 非傅里叶导热 双元相滞后模型 实验研究 数值计算 |
| 文章编号： | 1007-6735(2001)01-0197-04 |
| 修稿时间： | 2001-04-01 |
Thorough study on Non-Fourier heat conduction with DPL model |
| |
| JIANG Fang-ming,LIU Deng-ying. Thorough study on Non-Fourier heat conduction with DPL model[J]. Journal of University of Shanghai For Science and Technology, 2001, 23(3): 197-200 |
| |
| Authors: | JIANG Fang-ming LIU Deng-ying |
| |
| Abstract: | Contraposing the Non-Fourier heat conduction phenomenon experimentally observed in porous material, in the paper the dual-phase lag (DPL) model is employed to describe it and the corresponding numerical solution is obtained. The solution indicates that if the parameters, (T and (q are assumed to be suitable values, the DPL model can predict the experimental Non-Fourier heat conduction phenomenon qualitatively; if the ratio (T /(q is assumed to be different values, different types of Non-Fourier heat conduction behavior will appear in the medium. Accordingly, a comparatively suitable definition of Non-Fourier heat conduction is obtained which indicates that the Non-Fourier heat conduction is not the equivalent of heat wave it is pointed out. |
| |
| Keywords: | Non-Fourier heat conduction dual-phase lag model experimental study numerical computation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《上海理工大学学报》浏览原始摘要信息 |
|
点击此处可从《上海理工大学学报》下载全文 |
