Date of Original Version

9-2010

Type

Article

Abstract or Description

The scallop theorem posits that a two-link system immersed in a fluid at low Reynolds number cannot achieve any net translation via cyclic changes in its hinge angle. Here, we propose an approach to “breaking” this theorem, based on a static separation between the centers of mass and buoyancy in a net neutrally buoyant system. This separation gives the system a natural equilibrium orientation, allowing it to passively reorient without changing shape.

DOI

10.1063/1.3481785

Included in

Robotics Commons

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Published In

Phys. Fluids , 22, 091703.