A Macroscale Model Approach to Studying Microswimmer Locomotion at Low Reynolds Numbers

This study investigates the motion characteristics of microswimmers in low Reynolds number environments through numerical simulation and theoretical analysis. A biomimetic microswimmer with a spherical head and helical tail was designed based on the Magariyama model. Using MATLAB programming, the fluid dynamics equations were solved to calculate the swimming velocity and propulsion efficiency under various helical parameters. The results demonstrate that the tails helical angle and wavelength significantly influence the swimmers propulsion performance. Furthermore, the study reveals the interplay between inertial and viscous forces at the microscale. These findings provide theoretical support for the application of microrobots in biomedical fields.