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Microswimmers, nanoswimmers and microfluidic mixers: The role of hydrodynamic interactions and fluctuations

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If you have a question about this talk, please contact Doris Allen .

The directed propulsion of small scale objects in water is problematic because of the combination of low Reynolds number and strong thermal fluctuations at these length scales. I introduce simple prototypes of model low Reynolds number swimmers and examine their physical properties with and without fluctuations. I also report on a number of recent experimental realizations of such devices. Finally, I discuss the collective behavior of an array of model microfluidic pumps, and examine dynamical phenomena such as synchronization and (low Reynolds number) turbulent mixing, with and without fluctuations.

This talk is part of the Fluid Mechanics (DAMTP) series.

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