1. Design of bi-function cloaks with both thermal and electric cloaking
Jing-Yi.Li and Ji-Ping.Huang
Physics Department, Fudan University, Shanghai, , China
Based on the transformation method, we provide a design to implement a bi-function cloak with both thermal and electric cloaking. In this design, we propose a homogenized composite medium, in which metal particles are embedded in the adiabatic and insulating material, to realize the acquired values of thermal and electric conductivities. To analyse the details of the artificial structure and property of the cloak, the anisotropic effective medium theory (AEMT) is used as a generally practical method to control the shape and volume fraction of the metal particles in our composed material.
Results and COMSOL Simulation
Method
Cloak’s properties are determined by its parameters.
To implement multi-function cloak is to achieve he values for both thermal and electric
Material with anisotropic inside the cloak
FIG.1: Parameters (volume fraction, particle shape, radial and tangent conductivity for each image) we acquired in different cloaks whose two radius radio from 1:2 to 1:10 are compared.
Conclusion
Provide a design of a bi-function cloak with both thermal and electric cloaking at the same time and both the interface thermal resistance and the anisotropy are taken into the consideration.
Anisotropic effective medium theory is applied to control the particle shape and volume fraction in the sisyem, meanwhile the radial and tangent thermal and electric conductivities are realized in our design.
The dimension and thickness can be freely chosen.
This theoretic means can also been applied in other system like curvilinear anisotropic media.
References
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