Numerical and theoretical study of particle saltation on an obliquely oscillating plate

• We numerically study the particle saltation on an obliquely oscillating plate.
• Particle saltation is simulated using a mass-point model.
• The calculated trajectories are in good agreement with experimental results.
• The phase angle of the oscillation and the impulse during collision are analyzed.

Particle saltation on an obliquely oscillating plate is simulated using a mass-point model that considers gravity, fluid resistance, restitution, and friction. The calculated results are in good agreement with results obtained experimentally for particles with different diameters and restitutions. A large particle with high restitution bounces forward and backward repeatedly, whereas a particle with low restitution only bounces forward and consequently has a high transport velocity. The mechanism for the difference in the motion of the particles can be explained by taking into account the phase angle of the oscillating plate and the impulse during particle collision.

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