TY - GEN
T1 - A Three-Dimensional SBP-SAT FDTD Method for Complex Structures
AU - Liu, Hanhong
AU - Yang, Shunchuan
N1 - Publisher Copyright:
© 2023 Applied Computational Electromagnetics Society (ACES).
PY - 2023
Y1 - 2023
N2 - The FDTD method has been widely used in practical applications. This method shows limitations when deal with multiscale structures. Although the subgridding techniques provide an efficient solution by locally refining meshes, stability issues appear during long-time simulations. This paper proposes a three SBP-SAT FDTD method for long-time stability, which employs staggered grids and few mesh changes. A cavity and an aircraft are simulated by the proposed method and the conventional FDTD method. Both computational resource consumption and accuracy of the proposed method are compared with the FDTD method.
AB - The FDTD method has been widely used in practical applications. This method shows limitations when deal with multiscale structures. Although the subgridding techniques provide an efficient solution by locally refining meshes, stability issues appear during long-time simulations. This paper proposes a three SBP-SAT FDTD method for long-time stability, which employs staggered grids and few mesh changes. A cavity and an aircraft are simulated by the proposed method and the conventional FDTD method. Both computational resource consumption and accuracy of the proposed method are compared with the FDTD method.
KW - Finite-difference time-domain (FDTD) method
KW - summation-by-part simultaneous approximation term (SBP-SAT)
UR - https://www.scopus.com/pages/publications/85174243412
U2 - 10.23919/ACES-China60289.2023.10250052
DO - 10.23919/ACES-China60289.2023.10250052
M3 - 会议稿件
AN - SCOPUS:85174243412
T3 - 2023 International Applied Computational Electromagnetics Society Symposium, ACES-China 2023
BT - 2023 International Applied Computational Electromagnetics Society Symposium, ACES-China 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 International Applied Computational Electromagnetics Society Symposium, ACES-China 2023
Y2 - 15 August 2023 through 18 August 2023
ER -