论文标题
球形软粒子对矩形缝隙的非线性堵塞
Nonlinear clogging of a rectangular slit by a spherical soft particle
论文作者
论文摘要
矩形缝隙捕获软球形粒子会导致低雷诺数下的非主体压力流率关系。在被困粒子的存在下，流动诱导的变形将流线和压力下降到一个小区域。随着驾驶压力的增加，这会增加对流动的阻力。结果观察到了两个制度：小粒子变形的流动为主的制度，其中流速随压力增加而增加，固体变形阻止流动的弹性为主的制度。
The capture of a soft spherical particle by a rectangular slit leads to a non-monotonic pressure-flow rate relation at low Reynolds number. In the presence of the trapped particle the flow-induced deformations focus the streamlines and pressure drop to a small region. This increases the resistance to flow by several orders of magnitude as the driving pressure is increased. As a result two regimes are observed: a flow-dominated regime for small particle deformations, where flow rate increases with pressure, and an elastic-dominated regime in which solid deformations block the flow.
