A stable and conservative method of locally adapting the design order of finite difference schemes

Sofia Eriksson, Qaisar Abbas, Jan Nordström

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

Abstract

A procedure to switch the order of accuracy of finite difference schemes is developed. The development is based on existing Summation-By-Parts operators and a weak interface treatment. The resulting scheme is proven to be stable and accurate. Numerical experiments verify the theoretical accuracy for smooth solutions. In addition shock calculations is performed, using a scheme where the developed switching procedure is combined with the MUSCL technique for shock capturing.

Original languageEnglish
Title of host publication7th South African Conference on Computational and Applied Mechanics, SACAM 2010
EditorsSchalk Kok, Helen Mary Inglis, Daniel Nicolas Wilke
PublisherSouth African Association for Theoretical and Applied Mechanics (SAAM)
Pages128-136
Number of pages9
ISBN (Electronic)9780620491921
Publication statusPublished - 2010
Externally publishedYes
Event7th South African Conference on Computational and Applied Mechanics, SACAM 2010 - Pretoria, South Africa
Duration: 10 Jan 201013 Jan 2010

Publication series

Name7th South African Conference on Computational and Applied Mechanics, SACAM 2010

Conference

Conference7th South African Conference on Computational and Applied Mechanics, SACAM 2010
Country/TerritorySouth Africa
CityPretoria
Period10/01/1013/01/10

Keywords

  • Conservation
  • Finite difference methods
  • High order accuracy
  • Shock calculations
  • Stability
  • Summation-by-parts

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanical Engineering

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