engleski

Scallop Theorem and Swimming at the Mesoscale

By comparing theoretical modeling, simulations, and experiments, we show that there exists a swimming regime at low Reynolds numbers solely driven by the inertia of the swimmer itself. This is demonstrated by considering a dumbbell with an asymmetry in coasting time in its two spheres. Despite deforming in a reciprocal fashion, the dumbbell swims by generating a nonreciprocal Stokesian flow, which arises from the asymmetry in coasting times. This asymmetry acts as a second degree of freedom, which allows the scallop theorem to be fulfilled at the mesoscopic scale.

Locomotion ; Swimming ; Physical Systems ; Active matter ; Low Reynolds number ; swimmers, Self-propelled particles ; Lattice-Boltzmann methods ; Fluid Dynamics

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