The plausibility of Kolmogorov-type spectra in molecular clouds
T. Passot, A. Pouquet, P. Woodward;
AaA, 1988, 197, 228
ABSTRACT:It is shown on the basis of two dimensional numerical simulations that a Kolmogorov-type spectrum and a sizeable compressibility with rms Mach numbers close to
unity are compatible, thus relieving the possibility that the scaling laws
observed in a variety of molecular clouds can have a classical turbulent
interpretation.
In these calculations a highly filamentary structure develops, visible
both in density and vorticity which seems compatible with fine resolution
observations in molecular clouds.
Moreover, it is added that several inertial
ranges due to different instabilities occurring at well separated scales can
coexist independently.
KEYWORDS: energy spectra, gas dynamics, kolmogoroff theory, molecular clouds, turbulence, fine structure, gravitational collapse, kinetic energy, mach number, supersonic flow, velocity distribution
PERSOKEY:turbulence, ,
CODE: passot88