Implementation of Free-Surface Condition for Finite-Difference Time-Domain Method Using a Staggered Grid with the Collocated Grid Points of Velocities
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概要
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The finite-difference time-domain (FD-TD) method using a staggered grid with the collocated grid points of velocities (SGCV) in two dimensions was applied to Lamé mode resonators on an isotropic solid. Their resonance frequencies of the fundamental Lamé mode were examined to confirm the validity of the SGCV models of the free surfaces. The resonance frequency obtained with an SGCV, which uses bipolynomial interpolation with values of velocity on six adjoining grids to evaluate the derivatives of velocity vector fields on a grid, showed good agreement with the analytical resonance frequency.
- 2013-07-25
著者
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Hasegawa Koji
Muroran Institute Of Technology
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Yasui Takashi
Kitami Institute of Technology, Kitami, Hokkaido 090-8507, Japan
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Hirayama Koichi
Kitami Institute of Technology, Kitami, Hokkaido 090-8507, Japan
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