Optimal motility strategies for self-propelled agents to explore porous media

Autor: Lohrmann, Christoph, Holm, Christian
Rok vydání: 2023
Předmět:
Zdroj: Phys. Rev. E 108, 054401, 2023
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevE.108.054401
Popis: Micro-robots for, e.g., biomedical applications, need to be equipped with motility strategies that enable them to navigate through complex environments. Inspired by biological microorganisms we recreate motility patterns such as run-and-reverse, run-and-tumble or run-reverse-flick applied to active rod-like particles in silico. We investigate their capability to efficiently explore disordered porous environments with various porosities and mean pore sizes ranging down to the scale of the active particle. By calculating the effective diffusivity for the different patterns, we can predict the optimal one for each porous sample geometry. We find that providing the agent with very basic sensing and decision making capabilities yields a motility pattern outperforming the biologically inspired patterns for all investigated porous samples.
Databáze: arXiv