arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.06563cond-mat.softphysics.bio-phphysics.flu-dyn
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有源微机械:由中尺度turbulence驱动的微流体

Active micromachines: Microfluidics powered by mesoscale turbulence

Sumesh P. Thampi, Amin Doostmohammadi, Tyler N. Shendruk, Ramin Golestanian, Julia M. Yeomans

摘要:

密集的活性物质,从细菌悬浮液和由马达蛋白驱动的微管束到细胞单层和合成Janus颗粒,其特征在于中尺度湍流,混沌流结构的出现。通过将有序的对称转子阵列浸入到活性流体中,我们引入了一种微流控系统,该系统利用介观湍流中的自发对称性破缺来做功。转子的晶格自组织成自旋状态,其中相邻的盘由于流体动力学和弹性效应的组合而在永久交替的方向上连续旋转。我们的虚拟样机展示了一个新的研究方向的微机械设计提供动力的主动湍流的线虫流体动力学特性。

英文摘要:

Dense active matter, from bacterial suspensions and microtubule bundles driven by motor proteins to cellular monolayers and synthetic Janus particles, is characterised by mesoscale turbulence, the emergence of chaotic flow structures. By immersing an ordered array of symmetric rotors in an active fluid, we introduce a microfluidic system that exploits spontaneous symmetry breaking in mesoscale turbulence to generate work. The lattice of rotors self-organises into a spin-state where neighbouring discs continuously rotate in permanent alternating directions due to combined hydrodynamic and elastic effects. Our virtual prototype demonstrates a new research direction for the design of micromachines powered by the nematohydrodynamic properties of active turbulence.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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