Dynamics of rigid and flexible extended bodies in viscous films and membranes.
Dynamics of rigid and flexible extended bodies in viscous films and membranes.
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粘性薄膜和膜中刚性和柔性延伸体的动力学。
DOI：
10.1103/physrevlett.93.038102
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发表时间：
2003
影响因子：
8.6
通讯作者：
F. MacKintosh
中科院分区：
文献类型：
--
作者：
A. Levine;T. Liverpool;F. MacKintosh
我们研究的动态扩展棒状机构（或相关）膜和电影。我们证明了一个显着的差异之间的流动性在电影和散装流体，即使当耗散是由流体应力为主：对于大型夹杂物，我们发现，旋转和运动垂直于杆轴表现出纯粹的本地阻力，其中的阻力系数是代数杆尺寸。我们还研究了半柔性夹杂的内部模式的动力学，发现在弛豫谱中有两个动力学区域。
We study the dynamics of extended rodlike bodies in (or associated with) membranes and films. We demonstrate a striking difference between the mobilities in films and bulk fluids, even when the dissipation is dominated by the fluid stress: For large inclusions, we find that rotation and motion perpendicular to the rod axis exhibit purely local drag, in which the drag coefficient is algebraic in the rod dimensions. We also study the dynamics of the internal modes of a semiflexible inclusion and find two dynamical regimes in the relaxation spectrum.