Ellipsoidal Thermal Concentrator and Cloak with Transformation Media  

作　　者：Yong Gao 高勇(Department of Physics,Research Center of Resource Recycling Science and Engineering,Shanghai Polytechnic University,Shanghai 201209,China)

机构地区：[1]Department of Physics,Research Center of Resource Recycling Science and Engineering,Shanghai Polytechnic University,Shanghai 201209,China

出　　处：《Chinese Physics Letters》2021年第2期2-6,共5页中国物理快报（英文版）

基　　金：Supported by the Gaoyuan Discipline of Shanghai-Environmental Science and Engineering(Resource Recycling Science and Engineering).

摘　　要：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.

关 键 词：properties. TRANSFORMATION THERMAL 

分 类 号：TK123[动力工程及工程热物理—工程热物理]