Abstract

Both drag and lift forces impact an inclined plane when it is dragged through a granular bed. In this paper, the following results have been obtained: the drag and lift forces grow with the velocity of motion; when the immersion depth is constant, the inclination angle has no effect on drag force, however, the lift force increases linearly with this inclination angle. In order to describe this physical process macroscopically, a continuum wedge model based on the Coulomb model is established to predict drag and lift forces. Particularly, the dynamic friction angle in the assumed shear band is predicted as a function of both inclined angle and moving velocity.

Graphic abstract

中文翻译：

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穿过颗粒床的倾斜平面的阻力升力连续模型。

摘要

当将其拖动通过颗粒床时，拖动力和举升力都会影响它。在本文中，获得了以下结果：阻力和升力随着运动速度的增加而增加；当浸入深度恒定时，倾斜角对拖曳力没有影响，但是，提升力随该倾斜角线性增加。为了从宏观上描述该物理过程，建立了基于库仑模型的连续楔形模型来预测阻力和升力。特别地，在假定的剪切带中的动摩擦角被预测为倾斜角和运动速度两者的函数。

图形摘要