CPML Absorbing Boundary Condition in Modeling of Transient Electromagnetic Fields

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2015, Vol. 32 ›› Issue (6): 701-708.

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CPML Absorbing Boundary Condition in Modeling of Transient Electromagnetic Fields

JIANG Yannan^1,2,3, LIU Wen², WANG Jiao^2,3, ZHANG Wencui²

1. Guangxi Key Laboratory of Wireless Wideband Communication & Signal Processing, Guilin 541004, China;
2. School of Information and Communication Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
3. Guangxi Experiment Center of Information Science, Guilin University of Electronic Technology, Guilin 541004, China

Received:2014-11-21 Revised:2015-02-09 Online:2015-11-25 Published:2015-11-25

Abstract

Abstract: A scheme of convolutional perfectly matched layer (CPML) absorbing boundary condition (ABC) is proposed, which is used to truncate finite-difference time-domain (FDTD) method modeling transient electromagnetic (TEM) response. It derives specially CPML formulation dealing explicitly with divergence of magnetic induction and conceives an algorithm calculating convolutional term of z component. Then, the scheme is validated by numerical modeling of a homogeneous half-space model. The results indicate that efficient calculation of TEM is achieved.

Key words: transient electromagnetic method, finite-difference time-domain, perfectly matched layer, convolutional PML absorbing boundary condition

CLC Number:

P631

JIANG Yannan, LIU Wen, WANG Jiao, ZHANG Wencui. CPML Absorbing Boundary Condition in Modeling of Transient Electromagnetic Fields[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2015, 32(6): 701-708.

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CPML Absorbing Boundary Condition in Modeling of Transient Electromagnetic Fields

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