The dynamics of a self-phoretic Janus swimmer near a wall
The dynamics of a self-phoretic Janus swimmer near a wall
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DOI：
10.1209/0295-5075/111/48008
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发表时间：
2015-08-01
期刊：
影响因子：
1.8
通讯作者：
Liverpool, T. B.
中科院分区：
文献类型：
--
作者：
Ibrahim, Y.;Liverpool, T. B.
我们研究了附近平面壁对泳动 Janus 微型游泳器推进力的影响，该游泳器由其表面的不对称反应驱动，吸收反应物并产生产物。我们表明，这些游泳者在墙壁附近的行为可以根据游泳者主要是吸收还是产生反应溶质以及他们的游泳方向是惰性面还是活性面在前面来分类。我们发现，壁引起的溶质梯度总是促进游泳者沿着壁的推进，而流体动力学的影响导致游泳方向重新定向远离壁。版权所有 (C) EPLA，2015
We study the effect of a nearby planar wall on the propulsion of a phoretic Janus micro-swimmer driven by asymmetric reactions on its surface which absorb reactants and generate products. We show that the behaviour of these swimmers near a wall can be classified based on whether the swimmers are mainly absorbing or producing reaction solutes and whether their swimming directions are such that the inert or active face is at the front. We find that the wall-induced solute gradients always promote swimmer propulsion along the wall while the effect of hydrodynamics leads to re-orientation of the swimming direction away from the wall. Copyright (C) EPLA, 2015