论文标题
手性微晶的流体动力同步
Hydrodynamic Synchronisation of Chiral Microswimmers
论文作者
论文摘要
我们研究了使用大型数字的手性轨迹的球形微晶状体的大量悬浮液中的同步。该模型是通用的。它对应于在低雷诺数下进行自传的通用模型的最低级解决方案，该模型由非轴对称旋转源偶极子组成。我们表明，纯圆形和螺旋游泳者都可以自发同步其旋转。同步状态对应于在极性和方位角方向上具有高方向顺序的速度比对。最后，我们考虑了螺旋游泳者的外消旋混合物，在系统中，在系统保持空间均匀的流体时，观察到了种内同步。我们的结果表明，流体动力同步是具有手性轨迹的微晶状体的自然集体现象。
We study synchronization in bulk suspensions of spherical microswimmers with chiral trajectories using large scale numerics. The model is generic. It corresponds to the lowest order solution of a general model for self-propulsion at low Reynolds numbers, consisting of a nonaxisymmetric rotating source dipole. We show that both purely circular and helical swimmers can spontaneously synchronize their rotation. The synchronized state corresponds to velocity alignment with high orientational order in both the polar and azimuthal directions. Finally, we consider a racemic mixture of helical swimmers where intraspecies synchronization is observed while the system remains as a spatially uniform fluid. Our results demonstrate hydrodynamic synchronization as a natural collective phenomenon for microswimmers with chiral trajectories.
