Directional Method of Fundamental Solutions for Three-dimensional Laplace Equation

Chein-Shan Liu, Zhuojia Fu and Chung-Lun Kuo

Journal of Mathematics Research, 2017, vol. 9, issue 6, 112-123

Abstract: We propose a simple extension of the two-dimensional method of fundamental solutions (MFS) to a two-dimensional like MFS for the numerical solution of the three-dimensional Laplace equation in an arbitrary interior domain. In the directional MFS (DMFS) the directors are planar orientations, which can take the geometric anisotropy of the problem domain into account, and more importantly the order of the logarithmic singularity with $\ln R$ of the new fundamental solution is reduced than that of the conventional three-dimensional fundamental solution with singularity $1/r$. Some numerical examples are used to validate the performance of the DMFS.

Keywords: three-dimensional Laplace equation; directional method of fundamental solutions; irregular domain (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:ibn:jmrjnl:v:9:y:2017:i:6:p:112

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