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Saltation of Fine Particles on Obliquely Oscillating Plate

机译：倾斜振荡板上的细颗粒盐

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The saltation of fine particles on an obliquely oscillating plate was simulated using a mass-point model that considered the gravity, fluid resistance, restitution, and friction. To examine the effects of the restitution and fluid resistance on the horizontal transport velocity, the two-dimensional movements of three particles with different coefficients of restitution and diameters were calculated. The results showed that a particle with a higher restitution and smaller diameter had a smaller transport velocity. This can be explained as follows. A particle with a higher restitution bounces forward and backward repeatedly, whereas a particle with a lower restitution only bounces forward, because the higher bounce height increases the impulse exerted on the particle during a collision, which induces a drastic change in the horizontal velocity from the collision. The horizontal velocity of a smaller particle is decreased by the drag force during its flight between successive collisions.
机译：使用考虑重力，流体阻力，恢复性和摩擦的质量点模型来模拟倾斜振荡板上的细颗粒盐的盐。 为了检查恢复性和流体阻力对水平传输速度的影响，计算了三个颗粒具有不同恢复系数和直径的三个颗粒的二维运动。 结果表明，恢复性较高和较小直径较小的颗粒具有较小的运输速度。 这可以如下解释。 具有更高恢复性的粒子反复反复反弹，而具有较低恢复性的颗粒仅向前弹跳，因为较高的反弹高度在碰撞期间增加施加在颗粒上的脉冲，这引起了水平速度的剧烈变化。 碰撞。 在连续碰撞之间的飞行期间，拖曳力减小了较小粒子的水平速度。

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