2022/01/04 by Ze‐Hao Chen, Chen, Ze-Hao, Zhi-Xi Wu +1
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Biological Physics (physics.bio-ph) #Data Analysis #Diffusion and Search Dynamics #FOS: Physical sciences #Micro and Nano Robotics #Pickering emulsions and particle stabilization #Soft Condensed Matter (cond-mat.soft) #Statistics and Probability (physics.data-an)
paper · pdf · doi:10.48550/arxiv.2201.01118
openalex publication_date 2022/01/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Active particles (i.e., self-propelled particles or called microswimmers), different from passive Brownian particles, possess more complicated translational and angular dynamics, which can generate a series of anomalous transport phenomena. In this letter, we study the two-dimensional dynamics of a self-propelled pointlike particle with self-aligning property moving in Poiseuille flow. The results show the effective anomalous diffusion coefficient changes sharply with the change of temperature and speed of background Poiseuille flow. The relaxation property of moving speed and the position probability distribution function of particles is also obtained. The observation of several types of anomalous diffusion and normal diffusion regime indicates the self-aligning property may be universal and can be used as a reference for future experiments analysis and modeling.