A study on interstitial heat transfer in consolidated and unconsolidated porous media

被引：0
作者：
Akira Nakayama
Kenji Ando
Chen Yang
Yoshihiko Sano
Fujio Kuwahara
Jianjun Liu
机构：
[1] Shizuoka University,Department of Mechanical Engineering
[2] Wuhan Polytechnic University,Department of Civil Engineering
[3] Nitto Kogyo Corporation 2201,Research Division
来源：
Heat and Mass Transfer | 2009年 / 45卷
关键词：
Porous Medium; Heat Transfer Coefficient; Nusselt Number; Seepage Flow; Local Thermal Equilibrium;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The Nusselt number expressions are presented for the interstitial heat transfer coefficients for both consolidated and unconsolidated porous media. A boundary layer consideration is made for unconsolidated porous media to derive a general Nusselt number correlation, which shows its square root dependence of the Reynolds number, and matches fairly well with existing experimental data and correlations. As for low density consolidated porous media, rigorous mathematical arguments based on the volume averaging theory are provided, so as to explain the reason why the Reynolds number exponent of the Nusselt number expression for the case of low density consolidated porous media is much greater than that of unconsolidated porous media. The resulting expressions are compared against available experimental data and empirical correlations, and found to be in good accord with them.
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页码：1365 / 1372
页数：7
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