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首页> 外文期刊>Mathematical Problems in Engineering >Coupling the BEM/TBEM and the MFS for the Numerical Simulation of Wave Propagation in Heterogeneous Fluid-Solid Media
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Coupling the BEM/TBEM and the MFS for the Numerical Simulation of Wave Propagation in Heterogeneous Fluid-Solid Media

机译：耦合BEM / TBEM和MFS进行非均质流体介质中波传播的数值模拟

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摘要

This paper simulates wave propagation in an elastic medium containing elastic, fluid, rigid, and empty heterogeneities, which may be thin. It uses a coupling formulation between the boundary element method (BEM)/the traction boundary element method (TBEM) and the method of fundamental solutions (MFS). The full domain is divided into subdomains, which are handled separately by the BEM/TBEM or the MFS, to overcome the specific limitations of each of these methods. The coupling is enforced by applying the prescribed boundary conditions at all medium interfaces. The accuracy, efficiency, and stability of the proposed algorithms are verified by comparing the results with reference solutions. The paper illustrates the computational efficiency of the proposed coupling formulation by computing the CPU time and the error. The transient analysis of wave propagation in the presence of a borehole driven in a cracked medium is used to illustrate the potential of the proposed coupling formulation.
机译：本文模拟了在包含弹性，流体，刚性和空的非均质性（可能很薄）的弹性介质中的波传播。它使用边界元法（BEM）/牵引边界元法（TBEM）与基本解法（MFS）之间的耦合公式表示。完整域分为多个子域，这些子域由BEM / TBEM或MFS分别处理，以克服每种方法的特定限制。通过在所有介质接口上应用规定的边界条件来强制进行耦合。通过将结果与参考解决方案进行比较，验证了所提算法的准确性，效率和稳定性。本文通过计算CPU时间和误差来说明所提出的耦合公式的计算效率。在裂隙介质中存在井眼的情况下，对波传播的瞬态分析用于说明所提出的耦合公式的潜力。

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  • 来源
    《Mathematical Problems in Engineering》 |2011年第2期|p.1-26|共26页
  • 作者

    Antonio Tadeu; Igor Castro;

  • 作者单位

    CICC, Department of Civil Engineering, University of Coimbra, Rua Luis Reis Santos, P610 II da Universidade, 3030-788 Coimbra, Portugal;

    CICC, Department of Civil Engineering, University of Coimbra, Rua Luis Reis Santos, P610 II da Universidade, 3030-788 Coimbra, Portugal;

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