A NEW DENSITY VARIANCE–MACH NUMBER RELATION FOR SUBSONIC AND SUPERSONIC ISOTHERMAL TURBULENCE
A NEW DENSITY VARIANCE–MACH NUMBER RELATION FOR SUBSONIC AND SUPERSONIC ISOTHERMAL TURBULENCE
The probability density function of the gas density in subsonic and supersonic, isothermal, driven turbulence is analyzed using a systematic set of hydrodynamical grid simulations with resolutions of up to 10243 cells. We perform a series of numerical experiments with root-mean-square (rms) Mach number ranging from the nearly incompressible, subsonic …