当前位置：
X-MOL 学术
›
Soft Matter
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Squirmer rods as elongated microswimmers: flow fields and confinement.
Soft Matter ( IF 2.9 ) Pub Date : 2020-06-25 , DOI: 10.1039/d0sm00616e Arne W Zantop 1 , Holger Stark
Soft Matter ( IF 2.9 ) Pub Date : 2020-06-25 , DOI: 10.1039/d0sm00616e Arne W Zantop 1 , Holger Stark
Affiliation
|
Microswimmers or active elements, such as bacteria and active filaments, have an elongated shape, which determines their individual and collective dynamics. There is still a need to identify what role long-range hydrodynamic interactions play in their fascinating dynamic structure formation. We construct rods of different aspect ratios using several spherical squirmer model swimmers. With the help of the mesoscale simulation method of multi-particle collision dynamics we analyze the flow fields of these squirmer rods both in a bulk fluid and in Hele-Shaw geometries of different slab widths. Based on the hydrodynamic multipole expansion either for bulk or confinement between two parallel plates, we categorize the different multipole contributions of neutral as well as pusher-type squirmer rods. We demonstrate how confinement alters the radial decay of the flow fields for a given force or source multipole moment compared to the bulk fluid.
中文翻译：
蠕动棒作为细长的微游泳器：流场和约束。
微泳者或活动元素（例如细菌和活动细丝）具有细长的形状，这决定了它们的个体和集体动力。仍然需要确定远程流体动力相互作用在其迷人的动态结构形成中所起的作用。我们使用几个球形鼠形游泳者来构造不同纵横比的鱼竿。借助多粒子碰撞动力学的中尺度模拟方法，我们分析了在体液中以及在不同平板宽度的Hele-Shaw几何形状中这些蓄油杆的流场。基于在两块平行板之间的整体或封闭流体动力学多极膨胀，我们将中性以及推杆式蓄水棒的不同多极贡献进行了分类。
更新日期：2020-07-15
中文翻译：
蠕动棒作为细长的微游泳器：流场和约束。
微泳者或活动元素（例如细菌和活动细丝）具有细长的形状，这决定了它们的个体和集体动力。仍然需要确定远程流体动力相互作用在其迷人的动态结构形成中所起的作用。我们使用几个球形鼠形游泳者来构造不同纵横比的鱼竿。借助多粒子碰撞动力学的中尺度模拟方法，我们分析了在体液中以及在不同平板宽度的Hele-Shaw几何形状中这些蓄油杆的流场。基于在两块平行板之间的整体或封闭流体动力学多极膨胀，我们将中性以及推杆式蓄水棒的不同多极贡献进行了分类。
京公网安备 11010802027423号