scholarly journals Discretization of two-dimensional Luneburg lens based on the correctional effective medium theory

2021 ◽  
Vol 29 (21) ◽  
pp. 33434
Author(s):  
Zhiwei Sun ◽  
Chao Liu ◽  
Ruolei Xu ◽  
Heling Gong ◽  
Xiaobo Xuan ◽  
...  
Keyword(s):  
Effective Medium Theory ◽  
Effective Medium ◽  
Two Dimensional ◽  
Medium Theory ◽  
Luneburg Lens

Effective medium theory for two-dimensional random media composed of core–shell cylinders

2013 ◽  
Vol 306 ◽  
pp. 9-16 ◽  
Author(s):  
Hao Zhang ◽  
Yongqiang Shen ◽  
Yuchen Xu ◽  
Heyuan Zhu ◽  
Ming Lei ◽  
...  
Keyword(s):  
Random Media ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Core Shell ◽  
Two Dimensional ◽  
Medium Theory

Effective medium theory for two-dimensional non-magnetic metamaterial lattices up to quadrupole expansions

2015 ◽  
Vol 17 (7) ◽  
pp. 075102 ◽  
Author(s):  
Ioannis Chremmos ◽  
Efthymios Kallos ◽  
Melpomeni Giamalaki ◽  
Vassilios Yannopapas ◽  
Emmanuel Paspalakis
Keyword(s):  
Effective Medium Theory ◽  
Effective Medium ◽  
Two Dimensional ◽  
Medium Theory

Rigidity of Layered Random Alloys

1990 ◽  
Vol 207 ◽  
Author(s):  
Wei Jin ◽  
S. D. Mahanti ◽  
M. F. Thorpe
Keyword(s):  
Exact Solutions ◽  
Double Layer ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Intercalation Compounds ◽  
Two Dimensional ◽  
Layer Model ◽  
Medium Theory ◽  
Double Layer Model ◽  
Random Alloys

AbstractRandomly intercalated layered alloys are excellent models for two-dimensional microporous systems. We have studied the nonlinear gallery expansion and the gallery height fluctuations by constructing a double layer model that describes the layer rigidity and the size and stiffness of the intercalant species. Exact solutions, simulations and an effective-medium theory (EMT) results are compared. Applications of the results to ternary intercalation compounds are discussed.

Creeping flow in two-dimensional networks

1982 ◽  
Vol 119 ◽  
pp. 219-247 ◽  
Author(s):  
Joel Koplik
Keyword(s):  
Effective Medium Theory ◽  
Three Dimensional ◽  
Effective Medium ◽  
Creeping Flow ◽  
Absolute Permeability ◽  
Two Dimensional ◽  
Linear Network ◽  
Medium Theory ◽  
Reynolds Number Flow ◽  
Number Flow

We discuss creeping incompressible fluid flow in two-dimensional networks consisting of regular lattice arrays of variable-sized channels and junctions. The intended application is to low-Reynolds-number flow in models of porous media. The flow problem is reduced to an analogue linear-network problem and is solved by numerical matrix inversion. It is found that ‘effective-medium theory’ provides an excellent approximation to flow in such networks. Various qualitative features of such flows are discussed, and an elegant general form for the absolute permeability is derived. The latter, and the effective-medium approximation, are equally applicable to three-dimensional networks.

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