Fast numerical simulation of crustal deformation using a three-dimensional high-fidelity model

被引：15

作者：

Ichimura, Tsuyoshi ^{[1
]}

Agata, Ryoichiro ^{[1
]}

Hori, Takane ^{[2
]}

Hirahara, Kazuro ^{[3
]}

Hori, Muneo ^{[1
]}

机构：

[1] Univ Tokyo, Earthquake Res Inst, Bunkyo Ku, Tokyo 1130032, Japan

[2] Japan Agcy Marine Earth Sci & Technol, Kanazawa Ku, Yokohama, Kanagawa 2360001, Japan

[3] Kyoto Univ, Grad Sch Sci, Sakyo Ku, Kyoto 6068224, Japan

来源：

GEOPHYSICAL JOURNAL INTERNATIONAL | 2013年 / 195卷 / 03期

关键词：

Numerical solutions; Numerical approximations and analysis; Computational seismology; Kinematics of crustal and mantle deformation; Pacific Ocean; OKI EARTHQUAKE; TOHOKU; FAULTS; RATES; SLIP;

D O I：

10.1093/gji/ggt320

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The accumulation of observational data at high resolution has increased the demand for numerical simulation of crustal deformation using 3-D high-fidelity models. In this study, an automatic mesh-generation method for a 3-D high-fidelity finite element model without computer-aided design model or manual tuning was developed and then used in a fast numerical simulation of crustal deformation. The calculation is accelerated by an iterative solver based on a geometric multigrid, variable preconditioning and multiple-precision arithmetic. After verifying the accuracy of the proposed method, we conducted a numerical simulation of the crustal deformation of a giant earthquake to demonstrate its usefulness.

引用

页码：1730 / 1744

页数：15

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