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Title: Driven microswimmers on a 2D substrate: A stochastic towed sled model

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4935167· OSTI ID:22493233
 [1];  [1]
  1. Dipartimento di Fisica, Università di Camerino, I-62032 Camerino (Italy)

We investigate, both numerically and analytically, the diffusion properties of a stochastic sled sliding on a substrate, subject to a constant towing force. The problem is motivated by the growing interest in controlling transport of artificial microswimmers in 2D geometries at low Reynolds numbers. We simulated both symmetric and asymmetric towed sleds. Remarkable properties of their mobilities and diffusion constants include sidewise drifts and excess diffusion peaks. We interpret our numerical findings by making use of stochastic approximation techniques.

OSTI ID:
22493233
Journal Information:
Journal of Chemical Physics, Vol. 143, Issue 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
Country of Publication:
United States
Language:
English