Positive scheme numerical simulation of high mach number astrophysical jets

Youngsoo Ha, Carl Gardner

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

High Mach number astrophysical jets are simulated using a positive scheme, and are compared with WENO-LF simulations. A version of the positive scheme has allowed us to simulate astrophysical jets with radiative cooling up to Mach number 270 with respect to the heavy jet gas, a factor of two times higher than the maximum Mach number attained with the WENO schemes and ten times higher than with CLAWPACK. Such high Mach numbers occur in many settings in astrophysical flows, so it is important to develop a scheme that can simulate at these Mach numbers.

Original languageEnglish (US)
Pages (from-to)247-259
Number of pages13
JournalJournal of Scientific Computing
Volume34
Issue number3
DOIs
StatePublished - Mar 1 2008

Keywords

  • Astrophysical jets
  • Positive scheme simulations
  • Radiative cooling

ASJC Scopus subject areas

  • Software
  • Theoretical Computer Science
  • Numerical Analysis
  • Engineering(all)
  • Computational Theory and Mathematics
  • Computational Mathematics
  • Applied Mathematics

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