论文标题
一个简单的模型系统，用于通过瓶颈的自螺旋粒子
A simple model system for self-propelled particles passing a bottleneck
论文作者
论文摘要
我们研究活跃和被动颗粒颗粒通过重力偏置下的瓶颈的通过。谷物是药胶囊，在振动台上具有几乎球形的形状。振动板略微倾斜，以打破平面内对称性，并使颗粒在板上优先方向移动。使用视频成像研究了通过狭窄的闸门的通道，其开口与晶粒长度相当，并且从记录的框架中提取粒子位置和速度。我们将不对称填充的活性胶囊的行为与对称填充的被动胶囊的行为进行比较。
We study the passage of active and passive granular particles through a bottleneck under gravitational bias. The grains are pharmaceutical capsules with nearly spherocylindrical shapes on a vibrating table. The vibrating plate is slightly tilted in order to break the in-plane symmetry and to give particles a motivation to move in a preferential direction on the plate. The passage through a narrow gate with openings comparable to the grain length is studied using video imaging, and particle positions and velocities are extracted from the recorded frames. We compare the behaviour of asymmetrically filled, active capsules with symmetrically filled, passive ones.
