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Erschienen in:
2021 | OriginalPaper | Buchkapitel
Experiments and Large Eddy Simulations on Particle Interaction with a Turbulent Air Jet Impacting a Wall
verfasst von : Syphax Ikardouchene, Xavier Nicolas, Stéphane Delaby, Meryem Ould-Rouiss
Erschienen in: Turbulence and Interactions
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Abstract
Experiments and large eddy simulations are carried out to study the interaction of spherical particles with a turbulent air jet impacting a wall. The context is that of the dynamical air curtains used to separate a contaminated ambiance with passive or inertial particles from a clean ambiance. In the present study, the jet and particle Reynolds numbers and the jet and turbulence Stokes numbers are respectively equal to \(Re_{j}=13500\), \(0.7\le Re_{p} \le 3.5\), \(0.02\le St_j \le 0.35\) and \(0.1\le St_t \le 1\): they mainly concern passive particles. The rate of the particles that cross the air jet is analyzed according to the particle size, for two particle injection heights. A non-monotonic passing rate of the particles through the jet with respect to the particle size is observed in the experiments.