Pumping fluids with periodically beating grafted elastic filaments

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Using Brownian dynamics simulations, we investigate the pumping efficiency of an array of periodically beating semiflexible filaments that are grafted to a surface. Full hydrodynamic interactions among and within filaments and no slip at the surface are considered. Optimal pumping is obtained for a characteristic ratio of applied forward-backward torques and filament persistence length. For independently driven filaments, phase locking between neighboring filaments occurs autonomously via hydrodynamic coupling, giving rise to significantly enhanced pumping efficiency.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2006-04
Language
English
Article Type
Article
Keywords

PROPULSION; MICROORGANISMS; MODEL; CILIA

Citation

PHYSICAL REVIEW LETTERS, v.96, no.15

ISSN
0031-9007
DOI
10.1103/PhysRevLett.96.158101
URI
http://hdl.handle.net/10203/88532
Appears in Collection
NT-Journal Papers(저널논문)
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