Modeling the effective thermal conductivity of random packing of spheres through densification

被引：117

作者：

Argento, C ^{[1
]}

Bouvard, D ^{[1
]}

机构：

[1] UJF, INPG, CNRS, LAB SOLS, F-38041 GRENOBLE, FRANCE

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1996年 / 39卷 / 07期

关键词：

D O I：

10.1016/0017-9310(95)00257-X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal conductivity of densified random packing of spheres is studied. First, the resistance to heat flow of two touching deformed spheres is determined by the finite element method. A discrete model is proposed to extend the single contact results to random packings of spheres. The packings are densified by expanding the particle radius. Finally a continuous analytical expression is proposed to describe the relation between the effective thermal conductivity and the relative density of the packing.

引用

页码：1343 / 1350

页数：8

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