Direction-adaptive nonreflecting boundary conditions
type: Item
instance of: scholarly article
title: Direction-adaptive nonreflecting boundary conditions
zbMATH Open document ID: 0863.65047
author: P. Luchini
author: Renato Tognaccini
published in: Journal of Computational Physics
publication date: 1997-06-08T00:00:00Z
review text: Nonreflecting boundary conditions (NRBC) are used in wave equations with Sommerfeld reflecting condition at infinity. In order to use them in approximations they are imposed at a finite artificial boundary. In this case the problem is to make NRBC embody some information about the neglected exterior domain. By traversing the artificial boundary some waves are reflected which induces errors in the numerical solution. The authors propose a nonlinear NRBC although the problems are linear. Numerical experiments show that this approach is superior in accuracy to the actual ``local linear NRBC''.
Mathematics Subject Classification ID: 65M06
Mathematics Subject Classification ID: 35L05
zbMATH DE Number: 947671
zbMATH Keywords: numerical examples
zbMATH Keywords: nonreflecting boundary conditions
zbMATH Keywords: wave equations
zbMATH Keywords: Sommerfeld reflecting condition
zbMATH Keywords: artificial boundary
MaRDI profile type: Publication
full work available at URL: jcph.1996.0199
OpenAlex ID: W2021510039
DOI: 10.1006/JCPH.1996.0199
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description: scientific article; zbMATH DE number 947671