CUED Publications database

Breaking of symmetry in microfluidic propulsion driven by artificial cilia.

Khaderi, SN and Baltussen, MGHM and Anderson, PD and den Toonder, JMJ and Onck, PR (2010) Breaking of symmetry in microfluidic propulsion driven by artificial cilia. Phys Rev E Stat Nonlin Soft Matter Phys, 82. 027302-.

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Abstract

In this Brief Report we investigate biomimetic fluid propulsion due to an array of periodically beating artificial cilia. A generic model system is defined in which the effects of inertial fluid forces and the spatial, temporal, and orientational asymmetries of the ciliary motion can be individually controlled. We demonstrate that the so-far unexplored orientational asymmetry plays an important role in generating flow and that the flow increases sharply with Reynolds number and eventually becomes unidirectional. We introduce the concept of configurational symmetry that unifies the spatial, temporal, and orientational symmetries. The breaking of configurational symmetry leads to fluid propulsion in microfluidic channels.

Item Type: Article
Uncontrolled Keywords: Biomimetics Cilia Hydrodynamics Microfluidics Models, Biological
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:56
Last Modified: 08 Apr 2021 07:49
DOI: 10.1103/PhysRevE.82.027302