Transport of the moving barrier driven by chiral active particles
| Autor: | Jing-jing Liao, Bao-quan Ai, Xiao-qun Huang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Statistical Mechanics (cond-mat.stat-mech) media_common.quotation_subject Active particles FOS: Physical sciences General Physics and Astronomy Condensed Matter - Soft Condensed Matter Channel width Atomic packing factor 01 natural sciences Asymmetry 010305 fluids & plasmas Longitudinal direction Open-channel flow Position (vector) Chemical physics 0103 physical sciences Soft Condensed Matter (cond-mat.soft) Physical and Theoretical Chemistry 010306 general physics Chirality (chemistry) Condensed Matter - Statistical Mechanics media_common |
| Zdroj: | The Journal of Chemical Physics. 148:094902 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.5018371 |
| Popis: | Transport of a moving V-shaped barrier exposed to a bath of chiral active particles is investigated in a two-dimensional channel. Due to the chirality of active particles and the transversal asymmetry of the barrier position, active particles can power and steer the directed transport of the barrier in the longitudinal direction. The transport of the barrier is determined by the chirality of active particles. The moving barrier and active particles move in the opposite directions. The average velocity of the barrier is much larger than that of active particles. There exist optimal parameters (the chirality, the self-propulsion speed, the packing fraction, and the channel width) at which the average velocity of the barrier takes its maximal value. In particular, tailoring the geometry of the barrier and the active concentration provides novel strategies to control the transport properties of micro-objects or cargoes in an active medium. 21pages,25 figures |
| Databáze: | OpenAIRE |
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