Results stemming from a series of high-resolution three-dimensional computations using the PPM code  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 language||English (US)|
|Number of pages||8|
|Journal||Physica A: Statistical Mechanics and its Applications|
|State||Published - 1999|
Bibliographical noteFunding 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.
- Interstellar medium
- Supersonic turbulence