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Type: Journal article
Title: A mixer design for the pigtail braid
Author: Binder, B.
Cox, S.
Citation: Fluid Dynamics Research, 2008; 40(1):34-44
Publisher: Elsevier Science BV
Issue Date: 2008
ISSN: 0169-5983
Statement of
B.J. Binder and S.M. Cox
Abstract: The stirring of a body of viscous fluid using multiple stirring rods is known to be particularly effective when the rods trace out a path corresponding to a nontrivial mathematical braid. The optimal braid is the so-called "pigtail braid", in which three stirring rods execute the usual "over-under" motion associated with braiding (plaiting) hair. We show how to achieve this optimal braiding motion straightforwardly: one stirring rod is driven in a figure-of-eight motion, while the other two rods are baffles, which rotate episodically about their common centre. We also explore the extent to which the physical baffles may be replaced by flow structures (such as periodic islands). © 2006 The Japan Society of Fluid Mechanics and Elsevier B.V.
Description: Copyright © 2006 The Japan Society of Fluid Mechanics and Elsevier B.V. All rights reserved.
DOI: 10.1016/j.fluiddyn.2006.09.001
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Appears in Collections:Aurora harvest
Mathematical Sciences publications

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