Kim Yong Woon, Netz Roland R
Physics Department, Technical University Munich, 85748 Garching, Germany.
Phys Rev Lett. 2006 Apr 21;96(15):158101. doi: 10.1103/PhysRevLett.96.158101.
Using Brownian dynamics simulations, we investigate the pumping efficiency of an array of periodically beating semiflexible filaments that are grafted to a surface. Full hydrodynamic interactions among and within filaments and no slip at the surface are considered. Optimal pumping is obtained for a characteristic ratio of applied forward-backward torques and filament persistence length. For independently driven filaments, phase locking between neighboring filaments occurs autonomously via hydrodynamic coupling, giving rise to significantly enhanced pumping efficiency.
通过布朗动力学模拟，我们研究了接枝在表面上的周期性跳动半柔性细丝阵列的泵送效率。考虑了细丝之间以及细丝内部的完全流体动力学相互作用，并且表面无滑移。对于施加的前后扭矩与细丝持久长度的特征比，可获得最佳泵送效果。对于独立驱动的细丝，相邻细丝之间通过流体动力学耦合自动发生锁相，从而显著提高泵送效率。
