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Synchronization and collective dynamics in a carpet of microfluidic rotors

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Golestanian,  R.
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Uchida, N., & Golestanian, R. (2010). Synchronization and collective dynamics in a carpet of microfluidic rotors. Physical Review Letters, 104(17): 178103. doi:10.1103/PhysRevLett.104.178103.


Cite as: https://hdl.handle.net/21.11116/0000-0001-AD0A-2
Abstract
We study synchronization of an array of rotors on a substrate that are coupled by hydrodynamic interaction. Each rotor, which is modeled by an effective rigid body, is driven by an internal torque and exerts an active force on the surrounding fluid. The long-ranged nature of the hydrodynamic interaction between the rotors causes a rich pattern of dynamical behaviors including phase ordering and self-proliferating spiral waves. Our results suggest strategies for designing controllable microfluidic mixers using the emergent behavior of hydrodynamically coupled active components. © 2010 The American Physical Society.