Nonequilibrium turbulent dissipation in buoyant axisymmetric plume

Abstract

This paper established the existence of non-Kolmogorov turbulence in free shear flows. The authors propose a set of dissipation laws and link them with the spreading rates as well as the entrainment coefficient, which varies with the rise of the plume in contrast to the Kolmogorov case. The work also show how the parameters of two stretching transformations determine both Kolmogorov and non-Kolmogorov turbulence.