Abstract
Direct numerical simulations are performed to study the influence of the flow Reynolds number (Re) on the dynamics of inertial, ellipsoidal particles in a turbulent wall-bounded flow. In wall units, the time required for the particle distribution to reach a statistically steady state increases with Re. Once the distribution reached a statistically steady-state, a more uniform concentration profile is observed for higher values of Re, regardless of particle shape, but with a noticeable influence of particle inertia. Finally, in the near-wall region, preferential orientation of all ellipsoids is modified when Re increases, with a strong dependence on the ellipsoids characteristics.
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