*The capability of thermal metamaterials is required from single function to multifunction under different external heat conditions. The methods to develop thermal materials by simple structural transformations have been explored. While, traditional thermal metamaterial designs mainly consider solid-phase media and focus on the structure of materials, which is difficult to change the composition of materials, such as recombing and fixing the spatial position of material, because of material rigidity. Therefore, the potential of thermal materials is limited. Compared with solid-phase materials, liquid-phase media is more flexible in spatial structure. Therefore, the efficient combination of solid-liquid media provides an avenue for dynamically modeling thermal field.*

*Herein, we propose a concept of two-phase thermal metamaterial, which is switchable under the control of outfield. On one side, we develop a reconfigurable thermal metamaterial manipulated by micro magnetic particles under the magnetic field gradient. We analyze the heat transfer in the two-phase media by focusing on radiative-conductive coupled heat-transfer under translucent media condition. Otherwise, we propose a method to achieve a non-reciprocal heat transfer system by the design of two-phase media. The propose of two-phase thermal metamaterials set a general background for the design of smart functional devices in complex thermal environment.*


Two-Phase Thermal Metamaterial

Division / Sponsors: 
Design Engineering Division and Computers & Information In Engineering Division


Paper Proceedings: https://asmedigitalcollection.asme.org/IDETC-CIE/IDETC-CIE2020/volume/83907

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