Heat flux cloaking, focusing, and reversal in ultra-thin composites considering conduction-convection effects

被引：86

作者：

Dede, Ercan M. ^{[1
]}

Nomura, Tsuyoshi ^{[1
]}

Schmalenberg, Paul ^{[1
]}

Lee, Jae Seung ^{[1
]}

机构：

[1] Toyota Motor Engn & Mfg North Amer, Toyota Res Inst, Ann Arbor, MI 48105 USA

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 06期

关键词：

Flow control;

D O I：

10.1063/1.4816775

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experimental results are presented for heat flux cloaking, focusing, and reversal in ultra-thin anisotropic composites. A two-material system is utilized in the device design, which features an annular region for heat flow control. The effective thermal conductivity layout of the composite is specified through logical combination of the base material constituents. Heat transfer considering conduction-convection is numerically predicted and experimentally verified via infrared thermography. A Biot number analysis reveals the significance of high rates of convection for large-area planar devices, while the experimental results indicate the feasibility of such heat flow control techniques for advanced electronics applications involving natural convection. (C) 2013 AIP Publishing LLC.

引用

页数：4

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