Analysis of the fully discrete fat boundary method

作者:Bertoluzza Silvia; Ismail Mourad; Maury Bertrand*
来源:Numerische Mathematik, 2011, 118(1): 49-77.
DOI:10.1007/s00211-010-0317-4

摘要

The Fat Boundary Method is a method of the Fictitious Domain class, which was proposed to solve elliptic problems in complex geometries with non-conforming meshes. It has been designed to recover optimal convergence at any order, despite of the non-conformity of the mesh, and without any change in the discrete Laplace operator on the simple shape domain. We propose here a detailed proof of this high-order convergence, and propose some numerical tests to illustrate the actual behaviour of the method.

  • 出版日期2011-5