Reorientation dynamics of microswimmers at fluid-fluid interfaces

نویسندگان

چکیده

We show that a microswimmer trapped thermodynamically at fluid-fluid interfaces experiences torque arising from the hydrodynamic boundary condition interface. This turns force dipoles corresponding to pullers perpendicular and pushers parallel demonstrate in general case, when there is viscosity contrast across interface, steady state orientation given by interplay between torques self-propulsion which sensitive difference two fluids.

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ژورنال

عنوان ژورنال: Physical review fluids

سال: 2022

ISSN: ['2469-9918', '2469-990X']

DOI: https://doi.org/10.1103/physrevfluids.7.l042001