Resonant alignment of microswimmer trajectories in oscillatory shear flows
Resonant alignment of microswimmer trajectories in oscillatory shear flows
复制标题
振荡剪切流中微型游泳器轨迹的共振对准
DOI:
10.1103/physrevfluids.1.051201
复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
M. Haw
中科院分区:
文献类型:
--
作者:
A. Hope;O. A. Croze;W. Poon;M. Bees;M. Haw
Oscillatory flows are commonly experienced by swimming microorganisms in the environment, industrial applications and rheological investigations. We experimentally characterise the response of the alga {\it Dunaliella salina} to oscillatory shear flows, and report the surprising discovery that algal swimming trajectories orient perpendicular to the flow-shear plane. The ordering has the characteristics of a resonance in the driving parameter space. The behaviour is qualitatively reproduced by a simple model and simulations accounting for helical swimming, providing the mechanism for ordering and criteria for the resonant amplitude and frequency. The implications of this work for active oscillatory rheology and industrial algal processing are discussed.
影响因子:
44.1
作者:
Marchetti, M. C.;Joanny, J. F.;Simha, R. Aditi
通讯作者:
Simha, R. Aditi
DOI:
10.4155/bfs.13.66
发表时间:
2014-01
期刊:
Biofuels
影响因子:
--
作者:
M. Bees;O. A. Croze
通讯作者:
M. Bees;O. A. Croze
影响因子:
8.6
作者:
Zoettl, Andreas;Stark, Holger
通讯作者:
Stark, Holger