Periodic Orbits of Active Particles Induced by Hydrodynamic Monopoles.

Periodic Orbits of Active Particles Induced by Hydrodynamic Monopoles.
复制标题

流体动力单极子引起的活性粒子的周期轨道。

DOI:
--
复制
发表时间:
2019
影响因子:
8.6
通讯作者:
Ronojoy Adhikari
Ronojoy Adhikari
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
A. Bolitho;Rajesh K. Singh;Ronojoy Adhikari

文献摘要

参考文献

被引文献

相似文献

地球上对活跃粒子(如Volvox)的实验涉及重力、扭矩和伴随的单极流体流动。考虑到这些因素,我们分析了一对自推进、自旋的活性粒子在广泛分离的平行平面上的动力学。忽略由平面反射的流动,方向和水平分离的动力学是辛的,用哈密顿量精确地确定极限环振荡。在底部平面附近,重力扭矩阻尼和反射流激发了这个振荡器,维持了第二个极限环,这个极限环可能与第一个极限环有扰动关系。我们的工作为舞蹈团藻提供了一个理论,并强调了单极流在活性物质中的重要性。
Terrestrial experiments on active particles, such as Volvox, involve gravitational forces, torques and accompanying monopolar fluid flows. Taking these into account, we analyze the dynamics of a pair of self-propelling, self-spinning active particles between widely separated parallel planes. Neglecting flow reflected by the planes, the dynamics of orientation and horizontal separation is symplectic, with a Hamiltonian exactly determining limit cycle oscillations. Near the bottom plane, gravitational torque damps and reflected flow excites this oscillator, sustaining a second limit cycle that can be perturbatively related to the first. Our work provides a theory for dancing Volvox and highlights the importance of monopolar flow in active matter.
DOI: 10.1103/revmodphys.85.1143
发表时间: 2013-07-19
影响因子: 44.1
作者:
Marchetti, M. C.;Joanny, J. F.;Simha, R. Aditi
通讯作者: Simha, R. Aditi
绿藻作为生物流体动力学的模型生物。
DOI: 10.1146/annurev-fluid-010313-141426
发表时间: 2015-01-01
影响因子: 27.7
作者:
Goldstein RE
通讯作者: Goldstein RE
DOI: 10.1103/physrevlett.105.168101
发表时间: 2010-10-11
影响因子: 8.6
作者:
Drescher, Knut;Goldstein, Raymond E.;Tuval, Idan
通讯作者: Tuval, Idan
DOI: 10.1103/physrevlett.102.168101
发表时间: 2009-04-24
影响因子: 8.6
作者:
Drescher K;Leptos KC;Tuval I;Ishikawa T;Pedley TJ;Goldstein RE
通讯作者: Goldstein RE