Turbulence in compressible flows

David Porter, Annick Pouquet, Igor Sytine, Paul Woodward

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Results stemming from a series of high-resolution three-dimensional computations using the PPM code [28] are reviewed, both for decaying and for driven supersonic turbulence at a r.m.s. Mach number of unity. A comparison with Navier-Stokes runs is provided for the first time in three dimensions. Scaling laws for two-point structure functions obtain, that are similar to the incompressible case, including new results for the energy transfer. Vortex sheets and filaments develop, as well as numerous shocks, with a strong density contrast.

Original languageEnglish (US)
Pages (from-to)263-270
Number of pages8
JournalPhysica A: Statistical Mechanics and its Applications
Volume263
Issue number1-4
DOIs
StatePublished - 1999

Bibliographical note

Funding Information:
This work was supported at the University of Minnesota by the National Science Foundation through a grand challenge grant ASC-9217394, and by the Department of Energy's Office of Energy Research through grant DE-FGO2-87ER25035. In Nice, A.P. received partial support from CNRS PN-PCMI.

Keywords

  • Intermittency
  • Interstellar medium
  • Supersonic turbulence

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