Complete radiation boundary conditions for the Helmholtz equation I: waveguides
Numerische Mathematik(2019)
摘要
We consider the use of complete radiation boundary conditions for the solution of the Helmholtz equation in waveguides. A general analysis of well-posedness, convergence, and finite element approximation is given. In addition, methods for the optimization of the boundary condition parameters are considered. The theoretical results are illustrated by some simple numerical experiments.
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关键词
Helmholtz equation,Complete radiation boundary condition,Waveguide
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