Najafi Ali, Zargar Rojman
Department of Physics, Zanjan University, Zanjan 313, Iran.
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Jun;81(6 Pt 2):067301. doi: 10.1103/PhysRevE.81.067301. Epub 2010 Jun 4.
A three-dimensional model of a low-Reynolds-number swimmer is introduced and analyzed in this Brief Report. 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 nonreciprocal manner that effectively propels 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.
在本简要报告中，介绍并分析了一个低雷诺数游泳者的三维模型。该模型由通过两根垂直细杆连接的两个大小球体组成。这个系统的几何结构是受使用单条尾巴游泳的微生物启发而来；大球体代表微生物的头部，小球体类似其尾巴。每根杆以非互易的方式改变其长度和方向，从而有效地推动系统。针对不同的参数值，研究了游泳者的平移速度和旋转速度。我们的研究结果表明，通过改变参数，我们可以调整游泳者的速度和运动方向。
