Matching Boundary Conditions for Scalar Waves in Body-Centered-Cubic Lattices

Matching Boundary Conditions for Scalar Waves in Body-Centered-Cubic Lattices

Year:    2013

Author:    Ming Fang, Xianming Wang, Zhihui Li, Shaoqiang Tang

Advances in Applied Mathematics and Mechanics, Vol. 5 (2013), Iss. 3 : pp. 337–350

Abstract

Matching boundary conditions (MBC's) are proposed to treat scalar waves in the body-centered-cubic lattices. By matching the dispersion relation, we construct MBC's for normal incidence and incidence with an angle alpha. Multiplication of MBC operators then leads to multi-directional absorbing boundary conditions. The effectiveness is illustrated by the reflection coefficient analysis and wave packet tests. In particular, the designed M1M1 treats the scalar waves in a satisfactory manner.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aamm.12-m1264

Advances in Applied Mathematics and Mechanics, Vol. 5 (2013), Iss. 3 : pp. 337–350

Published online:    2013-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    14

Keywords:    Body-centered-cubic (BCC) crystalline solids dispersion relation matching boundary condition reflection coefficient scalar waves.

Author Details

Ming Fang

Xianming Wang

Zhihui Li

Shaoqiang Tang

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