Compact upwind schemes on adaptive octrees

  • Authors:
  • Scott M. Murman

  • Affiliations:
  • NASA Ames Research Center, Moffett Field, CA, USA

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2010

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Abstract

Compact high-order upwind schemes using reconstruction from cell-averages are derived for application with the compressible three-dimensional Navier-Stokes equations. An adaptive-octree mesh, combined with the Adams-Bashforth-Moulton family of predictor-corrector schemes, provides a conservative high-order time-integration platform supporting localized h-refinement and timestep sub-cycling. Numerical examples for smooth flows demonstrate the improvement over explicit upwind schemes and formal accuracy of the schemes, as well as the behavior in wall-bounded regions, and the resolution of a broad wavenumber spectrum.