Two-sphere low Reynold's propeller

Details Two-sphere low Reynold's propeller Two-sphere low Reynold's propeller

2010-09-29

arxiv.org/abs/1009.5817v1

Physics

Fluid Dynamics

Phys. Rev. E 81, 067301 (2010)

Scientific paper

A three-dimensional model of a low-Reynold's swimmer is introduced and analyzed in this paper. This model consists of two large and small spheres connected by two perpendicular thin rods. The geometry of this system is motivated by the microorganisms that use a single tail to swim, the large sphere represents the head of microorganism and the small sphere resembles its tail. Each rod changes its length and orientation in a non-reciprocal manner that effectively propel the system. Translational and rotational velocities of the swimmer are studied for different values of parameters. Our findings show that by changing the parameters we can adjust both the velocity and the direction of motion of the swimmer.

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