Chaos, randomization, and turbulence in particle-laden flows

Abstract

The randomization effect of the two-way (particle-flow) interaction has been studied and quantified using the notion of distributed chaos and the results of numerical simulations and laboratory measurements. It is shown, in particular, that an increase of such parameters as the particle volume fraction, particle mass loading, and Stokes number results generally in stronger randomization of the particle-laden flows. An important role of spontaneous breaking of the local reflectional symmetry in the randomization of the particle-laden flows has been also analyzed using relevant dynamical invariants.