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摘要翻译：
我们研究了在低雷诺数下游动的微生物之间的水动力相互作用。通过考虑简单模型游泳者，将解析方法和数值方法相结合，研究了游泳者周围的时均流场。在短距离游泳者的行为就像一个水泵。在大距离时，速度场取决于在时间反转和奇偶变换组合下泳姿是否不变。然后我们考虑两个游泳者，发现他们之间的相互作用由两部分组成；一个死项，独立于第二个游泳者的运动，它采取预期的偶极形式，一个活项是由两个游泳者同时游泳而产生的，而不是。我们认为，总的来说，后者占主导地位。游泳者与游泳者之间的相互作用是它们相对位移、方向和相位的复杂函数，导致运动可以是吸引的、排斥的或振荡的。
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英文标题：
《Swimming with a friend at low Reynolds number》
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作者：
C. M. Pooley, G. P. Alexander, and J. M. Yeomans
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Soft Condensed Matter 软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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一级分类：Physics 物理学
二级分类：Other Condensed Matter 其他凝聚态物质
分类描述：Work in condensed matter that does not fit into the other cond-mat classifications
在不适合其他cond-mat分类的凝聚态物质中工作
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一级分类：Physics 物理学
二级分类：Biological Physics 生物物理学
分类描述：Molecular biophysics, cellular biophysics, neurological biophysics, membrane biophysics, single-molecule biophysics, ecological biophysics, quantum phenomena in biological systems (quantum biophysics), theoretical biophysics, molecular dynamics/modeling and simulation, game theory, biomechanics, bioinformatics, microorganisms, virology, evolution, biophysical methods.
分子生物物理、细胞生物物理、神经生物物理、膜生物物理、单分子生物物理、生态生物物理、生物系统中的量子现象（量子生物物理）、理论生物物理、分子动力学/建模与模拟、博弈论、生物力学、生物信息学、微生物、病毒学、进化论、生物物理方法。
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一级分类：Quantitative Biology 数量生物学
二级分类：Other Quantitative Biology 其他定量生物学
分类描述：Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要：
We investigate the hydrodynamic interactions between microorganisms swimming at low Reynolds number. By considering simple model swimmers, and combining analytic and numerical approaches, we investigate the time-averaged flow field around a swimmer. At short distances the swimmer behaves like a pump. At large distances the velocity field depends on whether the swimming stroke is invariant under a combined time-reversal and parity transformation. We then consider two swimmers and find that the interaction between them consists of two parts; a dead term, independent of the motion of the second swimmer, which takes the expected dipolar form and a live term resulting from the simultaneous swimming action of both swimmers which does not. We argue that, in general, the latter dominates. The swimmer--swimmer interaction is a complicated function of their relative displacement, orientation and phase, leading to motion that can be attractive, repulsive or oscillatory.
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PDF链接：
https://arxiv.org/pdf/0705.3612
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