Stresslet asymptotics for a treadmilling swimmer near a two-dimensional corner: hydrodynamic bound states
Stresslet asymptotics for a treadmilling swimmer near a two-dimensional corner: hydrodynamic bound states
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跑步游泳运动员在二维角附近的应力渐进:流体动力学束缚态
DOI:
10.1098/rspa.2012.0237
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Davis A
中科院分区:
文献类型:
--
作者:
Davis A
The dynamics of a circular treadmilling low Reynolds number swimmer near a right-angled corner is studied in the asymptotic limit in which the radius of the treadmiller is small. The governing dynamical equations are found explicitly, correct to third order in the swimmer radius, by means of Mellin transform techniques. The existence of arc-like periodic orbits, or ‘hydrodynamic bound states’, in the corner region is identified, and these orbits are found to be attractors in the dynamics for a large range of initial swimmer locations and orientations. The analytical approach may be extended to wedge regions of other fractional angles.
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