Title :
Innovative absorbing-boundary conditions for the efficient FDTD analysis of transient EMP interaction problems
Author_Institution :
Dept. of Telecommun. Eng., Civil Aviation Univ. of China, Tianjin, China
Abstract :
The paper deals with a modified version of the Fang-Mei´s super-absorption algorithm for the truncation of three-dimensional finite-difference time-domain (FDTD) meshes combined with an innovative low pass filtered algorithm to assure numerical stability of the FDTD procedure for late time. The proposed method is usually applied to analysis of slow-decaying transient problems, such as the lightning or nuclear electromagnetic pulse interaction with a cable or complex structures. Numerical results demonstrate the efficiency of the proposed method.
Keywords :
FIR filters; electromagnetic pulse; filtering theory; finite difference time-domain analysis; numerical stability; transient analysis; FDTD mesh truncation; FDTD procedure; FIR filter; NEMP; absorbing-boundary conditions; cables; complex structures; digital filtering technique; low pass filtered algorithm; nuclear electromagnetic pulse; numerical stability; slow-decaying transient problems; super-absorption algorithm; transient EMP interaction problems; transient analysis; Boundary conditions; EMP radiation effects; Electromagnetic analysis; Electromagnetic transients; Finite difference methods; Finite impulse response filter; Lightning; Numerical stability; Time domain analysis; Transient analysis;
Conference_Titel :
Electromagnetic Compatibility, 2002 3rd International Symposium on
Print_ISBN :
0-7803-7277-8
DOI :
10.1109/ELMAGC.2002.1177414
