Title :
ADI-FDTD algorithm in curvilinear co-ordinates
Author :
Song, W. ; Hao, Y. ; Parini, C.G.
Author_Institution :
Dept. of Electron. Eng., Queen Mary Univ. of London, UK
Abstract :
The alternating direction implicit (ADI) scheme has been successfully applied to the finite-difference time-domain (FDTD) method to achieve an unconditionally stable algorithm. The ADI-FDTD method is extended to the curvilinear co-ordinate system to form an alternating direction implicit nonorthogonal FDTD (ADI-NFDTD) method. The numerical results show that the proposed ADI-NFDTD algorithm demonstrates better late time stability compared to the conventional NFDTD scheme.
Keywords :
computational electromagnetics; electromagnetic waves; finite difference time-domain analysis; numerical stability; ADI-FDTD algorithm; ADI-FDTD method; alternating direction implicit nonorthogonal FDTD; curvilinear co-ordinate system; finite-difference time-domain method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20052865
