期刊
ENGINEERING WITH COMPUTERS
卷 -, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1007/s00366-021-01585-3
关键词
Maxwell's equations; Finite-difference time-domain; Energy stability; Error estimate; Second-order space-time accuracy
资金
- National Natural Science Foundation of China [12131014]
A fully implicit finite-difference time-domain (FDTD) scheme with second-order space-time accuracy for Maxwell's equations in a Cole-Cole dispersive medium is proposed and analyzed. The proposed scheme is rigorously analyzed and shown to be unconditionally stable with second-order accuracy in both time and space. Numerical examples are provided to validate the theoretical findings.
A fully implicit finite-difference time-domain (FDTD) scheme with second-order space-time accuracy for Maxwell's equations in a Cole-Cole dispersive medium is proposed and analyzed. The temporal discretization is built upon Crank-Nicolson method, and the Caputo derivative term is based on the recently established L2-1(sigma) formula and a weighted approach. A rigorous analysis is carried out to show that the proposed scheme is unconditionally stable and has second-order accuracy in both time and space. 2D and 3D numerical examples are presented to validate our theoretical findings.
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