On flux-extrapolation at supersonic outflow boundaries

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6 Citations (Scopus)


One way of imposing boundary conditions for the Navier-Stokes equations at artificial supersonic outflow boundaries is to use flux-extrapolation. This procedure is analyzed and compared with variable-extrapolation both for the semi-discrete and continuous problem using the Laplace transform technique. It is shown that flux-extrapolation leads to a loss of accuracy and an extra time growth. The numerical experiments support the analytical results.

Original languageEnglish
Pages (from-to)447-457
Number of pages11
JournalApplied Numerical Mathematics
Issue number4
Publication statusPublished - 1 Jul 1999
Externally publishedYes

ASJC Scopus subject areas

  • Numerical Analysis
  • Computational Mathematics
  • Applied Mathematics


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