On the use of conformal grids for propagation and scattering problems in finite-difference time-domain computations

2003 ◽  
Author(s):  
J. Joseph ◽  
R. Mittra
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Scattering Problems ◽  
Difference Time

scholarly journals Finite Difference Time-Domain Modelling of Metamaterials: GPU Implementation of Cylindrical Cloak

2013 ◽  
Vol 2 (2) ◽  
pp. 10 ◽  
Author(s):  
A. Dawood
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Negative Permittivity ◽  
Performance Gain ◽  
Scattering Problems ◽  
Permittivity And Permeability ◽  
Difference Time ◽  
Gpu Implementation ◽  
Dispersive Material

Finite difference time-domain (FDTD) technique can be used to model metamaterials by treating them as dispersive material. Drude or Lorentz model can be incorporated into the standard FDTD algorithm for modelling negative permittivity and permeability. FDTD algorithm is readily parallelisable and can take advantage of GPU acceleration to achieve speed-ups of 5x-50x depending on hardware setup. Metamaterial scattering problems are implemented using dispersive FDTD technique on GPU resulting in performance gain of 10x-15x compared to conventional CPU implementation.

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