A neutral multi-coated sphere under non-uniform electric field in conductivity

被引:9
|
作者
Wang, Xu [1 ]
Schiavone, Peter [2 ]
机构
[1] E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China
[2] Univ Alberta, Dept Mech Engn, Edmonton, AB T6G 2G8, Canada
来源
基金
加拿大自然科学与工程研究理事会; 中国国家自然科学基金;
关键词
Generalized polarization tensor; Neutrality; Sphere; Multi-coating; Inverse conductivity problem; INCLUSIONS;
D O I
10.1007/s00033-012-0260-6
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We consider a neutral spherical inclusion for three-dimensional conductivity. Such an inclusion when inserted into a matrix does not disturb an arbitrary non-uniform electric field outside the inclusion. Our design is realized by means of multi-coating which cancels the lower order, generalized polarization tensors. Analytical results for a doubly coated sphere and detailed numerical results for a sphere with three or more coatings are presented to demonstrate the theory.
引用
收藏
页码:895 / 903
页数:9
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