Abstract
The effect of wall-normal external force and particle inertia on the deposition of particles in wall-bounded turbulence has been investigated by a point-particle Lagrange simulation. The preferential distribution of particles in the near-wall regions and the insufficient deceleration in the viscous sublayer jointly cause the enhancement of deposition velocity. The external forces strongly affect the clustering of particles in coherent flow structures. The increasing of the wall-normal force inhibits the clustering of particles, which further affects the deposition velocity.
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