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

Abstract

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.

Simulación de salto de partículas de polvo generado por acción del viento utilizando Comsol Multiphysics®

“…Esta partícula es transportada a lo largo de la superficie por una serie de saltos, con movimientos hacia adelante y hacia atrás. Este tipo de movimiento ocurre por la irregularidad del terreno, el tipo de salto va a depender directamente del ángulo de impacto sobre la superficie inclinada [17].…”

Extension of the bouncing ball model to a vibratory conveying system

“…The simulation results will be used to enhance the practical development process of conveyors. In the study of Kobayakawa et al [5], particle saltation on an obliquely oscillating plate using a mass-point model is simulated. It is founded that particles with high restitution bounce forward and backward repeatedly, while particles with low restitution only bounce forward due to the phase angle of the oscillating plate and impulse during particle collision.…”