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:
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发表时间:
2019
影响因子:
8.6
通讯作者:
Ronojoy Adhikari
中科院分区:
文献类型:
--
作者:
A. Bolitho;Rajesh K. Singh;Ronojoy Adhikari
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.
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影响因子:
44.1
作者:
Marchetti, M. C.;Joanny, J. F.;Simha, R. Aditi
通讯作者:
Simha, R. Aditi
影响因子:
27.7
作者:
Goldstein RE
通讯作者:
Goldstein RE
影响因子:
8.6
作者:
Drescher, Knut;Goldstein, Raymond E.;Tuval, Idan
通讯作者:
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影响因子:
8.6
作者:
Drescher K;Leptos KC;Tuval I;Ishikawa T;Pedley TJ;Goldstein RE
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