An Improvement of Absorbing Boundary Condition Based on Algorithm of Constrained Interpolation Profile Method for Finite-Difference Time-Domain Acoustic Simulation

被引：9

作者：

Harada, Yoshifumi ^{[1
]}

Okubo, Kan ^{[1
]}

Tagawa, Norio ^{[1
]}

Tsuchiya, Takao ^{[2
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Syst Design, Tokyo 1910065, Japan

[2] Doshisha Univ, Dept Informat Syst Design, Kyoto 6100321, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 07期

关键词：

D O I：

10.1143/JJAP.49.07HC09

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study we examined an improved reasonable absorbing boundary condition (ABC). We examined ABC on the basis of the algorithm of the constrained interpolation profile (CIP) method for finite-difference time-domain (FDTD) acoustic simulation. Analysis of one-dimensional sound propagation with CIP-ABC was implemented. The results obtained in this study clarified that improved CIP-ABCs have better absorption performance than first-order Mur's ABC. That is, CIP-ABCs maintain a reflection coefficient that is lower than that of Mur's ABC in all frequency ranges. (c) 2010 The Japan Society of Applied Physics

引用

页数：2

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