一种采用边界检测的自适应区域分解时域有限差分方法

Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (5): 493-496.

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An Adaptive Domain Decomposition FDTD Method Using Boundary Detection

ZHANG Hua, HONG Wei, HAO Zhang-cheng, CUI Tei-jun

State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China

Received:2004-06-09 Revised:2004-09-06 Online:2005-09-30 Published:2005-09-30

Abstract

Abstract: An extension of the classical FDTD, adaptive domain-decomposition FDTD (ADD-FDTD) using a boundary detection method, is proposed to solve multiple sub-region problems.In ADD-FDTD, the problem domain is divided into several independent FDTD sub-regions.A boundary condition is applied to boundaries between sub-regions with adaptive detection.In each sub-region, FDTD iteration is activated only if the propagated wave reaches its boundary, otherwise no calculation is performed.Simulation results show that ADD-FDTD is efficient in both computational complexity and computational time.

Key words: domain decomposition, adaptive boundary testing, finite-difference time-domain

CLC Number:

TN015

ZHANG Hua, HONG Wei, HAO Zhang-cheng, CUI Tei-jun. An Adaptive Domain Decomposition FDTD Method Using Boundary Detection[J]. Journal of Applied Sciences, 2005, 23(5): 493-496.

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An Adaptive Domain Decomposition FDTD Method Using Boundary Detection

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