Energy stable high order finite difference methods on staggered grids: An initial investigation

Ossian O'Reilly, Tomas Lundquist, Jan Nordström

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consider wave equations in first-order form and derive provably stable, high order finite difference operators on staggered grids. This is the first time that stability has been proven for initial boundary value problems for wave equations on staggered grids. The staggered grid operators are in summation-by-parts form and when combined with weak boundary conditions, lead to an energy stable scheme. Numerical computations for the two dimensional acoustic wave equation in Cartesian geometries corroborate the theoretical developments.

Original languageEnglish
Title of host publicationECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering
EditorsG. Stefanou, M. Papadrakakis, V. Papadopoulos, V. Plevris
PublisherNational Technical University of Athens
Pages3211-3223
Number of pages13
ISBN (Electronic)9786188284401
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event7th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2016 - Crete, Greece
Duration: 5 Jun 201610 Jun 2016

Publication series

NameECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering
Volume2

Conference

Conference7th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2016
Country/TerritoryGreece
CityCrete
Period5/06/1610/06/16

Keywords

  • Energy stability
  • High order finite difference methods
  • Staggered grids
  • Summation-by-parts
  • Wave Equations
  • Weak boundary conditions

ASJC Scopus subject areas

  • Artificial Intelligence
  • Applied Mathematics

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