Chin. Phys. Lett.  2021, Vol. 38 Issue (2): 020501    DOI: 10.1088/0256-307X/38/2/020501
Ellipsoidal Thermal Concentrator and Cloak with Transformation Media
Yong Gao*
Department of Physics, Research Center of Resource Recycling Science and Engineering, Shanghai Polytechnic University, Shanghai 201209, China
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Yong Gao 2021 Chin. Phys. Lett. 38 020501
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Abstract Thermal concentrators and cloaks with ellipsoidal shapes are designed by utilizing the transformation thermotics method and finite element simulations. The thermal conductivities for the concentrator and cloak are directly derive in Cartesian coordinates. The simulation results show that the ellipsoidal thermal concentrator can focus heat flux into a central region and that the ellipsoidal thermal cloak can guide heat flux around the cloaked region smoothly without disturbing the external temperature distribution and heat flux. The present method can be extended to design arbitrarily shaped thermal metadevices with novel properties.
Received: 10 October 2020      Published: 27 January 2021
PACS:  05.70.-a (Thermodynamics)  
  44.10.+i (Heat conduction)  
  81.05.Zx (New materials: theory, design, and fabrication)  
Fund: Supported by the Gaoyuan Discipline of Shanghai-Environmental Science and Engineering (Resource Recycling Science and Engineering).
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Yong Gao
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