Effective Thermal Conductivity and Permeability of Aluminum Foam Materials1

被引：0
作者：
J. W. Paek
B. H. Kang
S. Y. Kim
J. M. Hyun
机构：
[1] Korea Institute of Science and Technology,Thermal/Flow Control Research Center
[2] Korea Advanced Institute of Science and Technology,Department of Mechanical Engineering
来源：
International Journal of Thermophysics | 2000年 / 21卷
关键词：
aluminum foam metal; effective thermal conductivity; friction factor; permeability; pressure loss;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An experimental measurement program was performed to determine thermophysical properties of aluminum-based foam metals. The effective thermal conductivity ke and permeability K were investigated in detail. Experimental facilities were fabricated, and the measurement procedures and methodologies were evaluated. One-dimensional heat conduction was considered to determine ke . The results indicate that ke increases as the porosity ε decreases. However, no noticeable changes in ke were detected from variations of the cell size of the foam metal at a fixed porosity ε. The permeability K is substantially affected by both ε and the cell size. An empirical correlation for the friction factor f is proposed based on the concepts of K and inertial effect.
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页码：453 / 464
页数：11
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