Finite‐difference time‐domain approach to underwater acoustic scattering problems

1996 ◽  
Vol 99 (4) ◽  
pp. 1924-1931 ◽  
Author(s):  
Shuozhong Wang
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Acoustic Scattering ◽  
Scattering Problems ◽  
Underwater Acoustic ◽  
Difference Time ◽  
Acoustic Scattering Problems

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.

Finite Difference Time Domain Analysis of Underwater Acoustic Lens System for Ambient Noise Imaging

2006 ◽  
Vol 45 (5B) ◽  
pp. 4834-4841 ◽  
Author(s):  
Kazuyoshi Mori ◽  
Ayano Miyazaki ◽  
Hanako Ogasawara ◽  
Tomoki Yokoyama ◽  
Toshiaki Nakamura
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Ambient Noise ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Lens System ◽  
Underwater Acoustic ◽  
Acoustic Lens ◽  
Difference Time
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