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作者:

Xu, Chengshun (Xu, Chengshun.) (学者:许成顺) | Song, Jia (Song, Jia.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力) | Zhao, Mi (Zhao, Mi.) (学者:赵密)

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EI Scopus SCIE

摘要:

The dynamic problem of wave propagation in infinite fluid-saturated porous media is usually solved using the finite element method. Therefore, proper artificial-boundary conditions are required to be imposed on the truncated boundaries of the dynamic finite-element model to consider the radiation damping effect of the truncated media. A local artificial-boundary condition is proposed for the dynamic problems in fluid-saturated porous media in the mu-p formulation. It avoids making the unrealistic assumption of zero permeability that is widely used in the existing artificial-boundary conditions. Moreover, the proposed method can be implemented easily into finite element or finite difference codes as stress and flow velocity boundary conditions. Numerical results obtained from the finite element model using the proposed artificial boundary indicate that the proposed method is stable for long time and is more accurate than several existing methods. Copyright (c) 2017 John Wiley & Sons, Ltd.

关键词:

artificial-boundary condition dynamic finite element model fluid-saturated porous media the mu-pequation

作者机构:

  • [ 1 ] [Xu, Chengshun]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Song, Jia]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Zhao, Mi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

通讯作者信息:

  • 杜修力

    [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

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来源 :

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING

ISSN: 0029-5981

年份: 2017

期: 6

卷: 112

页码: 529-552

2 . 9 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:92

中科院分区:2

被引次数:

WoS核心集被引频次: 16

SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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