Numerical Simulation and Statistical Modeling of Inertial Droplet Coalescence in Homogeneous Isotropic Turbulence

Numerical Simulations of Short- and Long-Range Interaction Forces in Turbulent Particle-Laden Gas Flows

“…Indeed, when solid non-charged particles are transported by a turbulent flow field, according to their inertia, they may accumulate in low-vorticity regions of the turbulence (Squires and Eaton 1991;Fessler et al 1994). Such a mechanism leads to large local concentrations of particles that may modify the collision rate (Sundaram and Collins 1997;Reade and Collins 2000) or the coalescence rate if droplets are considered instead of solid particles (Wunsch et al 2010). Furthermore, external forces may modify preferential concentration, as for example, Fede and Simonin (2010) showed that inter-particle collisions enhance preferential concentration.…”