NATURAL-CONVECTION IN POROUS-MEDIA .2. FREEZING

被引：2
|
作者：
LEIN, H
TANKIN, RS
机构：
[1] Department of Mechanical Engineering, Northwestern University, Evanston
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1992年 / 35卷 / 01期
关键词：
D O I：
10.1016/0017-9310(92)90019-O
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Freezing and melting experiments are conducted to visualize the interaction between natural convection and the phase change process in porous media. Landau's transformation is applied to solve the irregular moving boundary problem and the computed results agree well with the experimental data. It is found that the natural convection process is controlled by the mean Rayleigh number and weakens as the freezing process proceeds. Various aspect ratios are examined and they agree reasonably well with Beck's preferred formula for a rectangular box.
引用
收藏
页码：187 / 194
页数：8
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