Optimal active cooling performance of metallic sandwich panels with prismatic cores

被引:91
|
作者
Valdevit, L. [1 ]
Pantano, A.
Stone, H. A.
Evans, A. G.
机构
[1] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
[2] Space Engn SpA, Rome, Italy
[3] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
关键词
active cooling; sandwich panels; prismatic cores; thermo-structural optimization; genetic algorithm; multi-functionality;
D O I
10.1016/j.ijheatmasstransfer.2006.03.042
中图分类号
O414.1 [热力学];
学科分类号
摘要
All-metallic sandwich panels with prismatic cores are being currently investigated for combined structural and active cooling performance. We present a new approach to active cooling performance, and use it to optimize the panel geometry for four different systems: aluminum-air, aluminum-water, aluminum-gasoline and titanium-gasoline. The results show that some geometric parameters can be fixed without much detriment in thermal performance. Moreover, while optimal core densities are typically 25-50%, near-optimal results can be obtained with densities as low as 10%. These findings provide considerable geometric flexibility when attempting combined thermal and structural optimization. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3819 / 3830
页数:12
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