Turbulence modulation by settling inertial aerosols in Eulerian-Eulerian and Eulerian-Lagrangian simulations of homogeneously sheared turbulence

Abstract

When subject to strong shear, settling particles dispersed at semidilute concentrations may modulate the suspending flow significantly, in a way that enhances or attenuates turbulence. The modulation is enabled by the appearance of clusters and void fraction bubbles in the particle phase.