Efficiency of shock capturing schemes for Burgers' equation with boundary uncertainty

Per Pettersson, Qaisar Abbas, Gianluca Iaccarino, Jan Nordström

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

1 Citation (Scopus)

Abstract

Burgers' equation with uncertain initial and boundary conditions is approximated using a polynomial chaos expansion approach where the solution is represented as a series of stochastic, orthogonal polynomials. Even though the analytical solution is smooth, a number of discontinuities emerge in the truncated system. The solution is highly sensitive to the propagation speed of these discontinuities. High-resolution schemes are needed to accurately capture the behavior of the solution. The emergence of different scales of the chaos modes require dissipation operators to yield accurate solutions. We will compare the results using the MUSCL scheme with previously obtained results using conventional one-sided operators.

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)
Pages147-154
Number of pages8
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

  • High resolution schemes
  • Hyperbolic systems
  • Uncertainty quantification

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanical Engineering

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