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Singular boundary method for modified Helmholtz equations

机译:修正的Helmholtz方程的奇异边界方法

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摘要

This study makes the first attempt to apply a recent strong-form boundary collocation method using the singular fundamental solutions, namely the singular boundary method (SBM), to 2D and 3D modified Helmholtz equations. By the desingularization of subtracting and adding-back technique, the corresponding nonsingular SBM formulations are derived based on null-field integral equations and an inverse interpolation technique. Numerical demonstrations show the feasibility and accuracy of the present SBM in some benchmark problems.
机译:这项研究首次尝试将使用奇异基本解的最新强形式边界配置方法(即奇异边界方法(SBM))应用于2D和3D修改的Helmholtz方程。通过减法和加法的去奇化,基于空场积分方程和逆插值技术推导了相应的非奇异SBM公式。数值模拟表明了目前SBM在某些基准问题上的可行性和准确性。

著录项

  • 来源
    《Engineering analysis with boundary elements》 |2014年第7期|112-119|共8页
  • 作者单位

    College of Mechanics and Materials & State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 2/0098, PR China;

    College of Mechanics and Materials & State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 2/0098, PR China;

    College of Mechanics and Materials & State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 2/0098, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Singular boundary method; Collocation; Nonsingular; Meshless; Modified Helmholtz equations;

    机译:奇异边界法搭配;非单数无网格;修正的亥姆霍兹方程;

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