TY - GEN
T1 - Three-Dimensional Conformal LOD-FDTD Method for Accurate Transisent Electromagnetic Analysis
AU - Liu, Hanhong
AU - Wang, Xianghua
AU - Zhang, Xingqi
AU - Yang, Shunchuan
AU - Chen, Zhizhang
N1 - Publisher Copyright:
© 2021 Applied Computational Electromagnetics Society (ACES).
PY - 2021/7/28
Y1 - 2021/7/28
N2 - As we all know, the finite-difference time-domain (FDTD) method suffers obvious staircase error and courant-friedrich-levy (CFL) condition. We proposed a conformal locally one-dimensional (LOD-FDTD) method which can be applied in three-dimensional simulations and is still unconditionally stable to overcome these two issues in the traditional FDTD method. This method takes the partially filled cells into consideration to accurately model the perfectly electrical conductor (PEC) objects and allows time steps beyond the CFL condition. Unlike the traditional conformal FDTD methods, in which time steps have to be reduced to guarantee the stability, the proposed method still has unconditional stability without compromising the accuracy. Its accuracy is validated through a numerical example.
AB - As we all know, the finite-difference time-domain (FDTD) method suffers obvious staircase error and courant-friedrich-levy (CFL) condition. We proposed a conformal locally one-dimensional (LOD-FDTD) method which can be applied in three-dimensional simulations and is still unconditionally stable to overcome these two issues in the traditional FDTD method. This method takes the partially filled cells into consideration to accurately model the perfectly electrical conductor (PEC) objects and allows time steps beyond the CFL condition. Unlike the traditional conformal FDTD methods, in which time steps have to be reduced to guarantee the stability, the proposed method still has unconditional stability without compromising the accuracy. Its accuracy is validated through a numerical example.
KW - Conformal finite-difference time-domain
KW - courant-friedrich-levy condition
KW - locally-one-dimensional FDTD
KW - stability
UR - https://www.scopus.com/pages/publications/85119363523
U2 - 10.23919/ACES-China52398.2021.9581669
DO - 10.23919/ACES-China52398.2021.9581669
M3 - 会议稿件
AN - SCOPUS:85119363523
T3 - 2021 International Applied Computational Electromagnetics Society Symposium, ACES-China 2021, Proceedings
BT - 2021 International Applied Computational Electromagnetics Society Symposium, ACES-China 2021, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Applied Computational Electromagnetics Society Symposium in China, ACES-China 2021
Y2 - 28 July 2021 through 31 July 2021
ER -