The Density Probability Distribution in Compressible Isothermal Turbulence: Solenoidal versus Compressive Forcing
The Density Probability Distribution in Compressible Isothermal Turbulence: Solenoidal versus Compressive Forcing
The probability density function (PDF) of the gas density in turbulent supersonic flows is investigated with high-resolution numerical simulations. In a systematic study, we compare the density statistics of compressible turbulence driven by the usually adopted solenoidal forcing (divergence-free) and by compressive forcing (curl-free). Our results are in agreement with …