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Experiences with Explicit Time-Stepping Schemes for Supersonic Flow Fields

  • N. Kroll
  • R. Radespiel
  • C.-C. Rossow
Conference paper
Part of the Notes on Numerical Fluid Mechanics (NNFM) book series (NNFM, volume 29)

Summary

The computation of inviscid and viscous one- and two-dimensional supersonic and hypersonic flows using explicit Runge-Kutta time-stepping schemes is investigated. The spatial discretization is based on a cell-vertex finite-volume scheme with central differencing and various time-stepping schemes. Two artificial dissipation models are discussed with respect to accuracy and convergence behaviour. These are the well-known dissipation model based on fourth and second differences of the flow variables and a flux-limited dissipation model with TVD properties. Furthermore, the application of a multigrid scheme for supersonic flows is discussed. It is shown that substantial CPU-time savings are obtained using multigrid for the computation of viscous high-speed flows.

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Copyright information

© Springer Fachmedien Wiesbaden 1990

Authors and Affiliations

  • N. Kroll
    • 1
  • R. Radespiel
    • 1
  • C.-C. Rossow
    • 1
  1. 1.DLR, Institute for Design AerodynamicsBraunschweigGermany

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