Geometrical effects on the concentrated behavior of heat flux in metamaterials thermal harvesting devices

Guoqiang Xu, Haochun Zhang, Ming Xie & Yan Jin
Thermal harvesting devices based on transformation optics, which can manipulate the heat flux concentration significantly through rational arrangements of the conductivities, have attracted considerable interest owing to several great potential applications of the technique for high-efficiency thermal conversion and collection. However, quantitative studies on the geometrical effects, particularly wedge angles, on the harvesting behaviors are rare. In this paper, we adopt wedge structure-based thermal harvesting schemes, and focus on the effects of the geometrical parameters...
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