Focusing of active particles in a converging flow
Focusing of active particles in a converging flow
复制标题
汇聚流中活性粒子的聚焦
DOI:
10.1088/1367-2630/aa94fd
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发表时间:
2017
影响因子:
3.3
通讯作者:
Igor S. Aranson
中科院分区:
文献类型:
--
作者:
Mykhailo Potomkin;Andreas Kaiser;Leonid Berlyand;Igor S. Aranson
We consider active particles swimming in a convergent fluid flow in a trapezoid nozzle with no-slip walls. We use mathematical modeling to analyze trajectories of these particles inside the nozzle. By extensive Monte Carlo simulations, we show that trajectories are strongly affected by the background fluid flow and geometry of the nozzle leading to wall accumulation and upstream motion (rheotaxis). In particular, we describe the non-trivial focusing of active rods depending on physical and geometrical parameters. It is also established that the convergent component of the background flow leads to stability of both downstream and upstream swimming at the centerline. The stability of downstream swimming enhances focusing, and the stability of upstream swimming enables rheotaxis in the bulk.
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影响因子:
13.6
作者:
Kaiser A;Snezhko A;Aranson IS
通讯作者:
Aranson IS
影响因子:
3.4
作者:
W. Uspal;W. Uspal;M. N. Popescu;M. N. Popescu;S. Dietrich;S. Dietrich;M. Tasinkevych;M. Tasinkevych
通讯作者:
W. Uspal;W. Uspal;M. N. Popescu;M. N. Popescu;S. Dietrich;S. Dietrich;M. Tasinkevych;M. Tasinkevych
影响因子:
8.6
作者:
Hill, Jane;Kalkanci, Ozge;Koser, Hur
通讯作者:
Koser, Hur
影响因子:
2
作者:
Haines, Brian M.;Aranson, Igor S.;Karpeev, Dmitry A.
通讯作者:
Karpeev, Dmitry A.
影响因子:
44.1
作者:
Marchetti, M. C.;Joanny, J. F.;Simha, R. Aditi
通讯作者:
Simha, R. Aditi