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Self-Similar Drag Reduction in Plug-Flow of Suspensions of Macroscopic Fibers

Self-Similar Drag Reduction in Plug-Flow of Suspensions of Macroscopic Fibers, J. J. J. Gillissen and J. P. Hoving. Physics of Fluids 2012, 24  (11), 111702.

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Abstract

Pipe flow experiments show that turbulent drag reduction in plug-flow of concentrated suspensions of macroscopic fibers is a self-similar function of the wall shear stress over the fiber network yield stress. We model the experimental observations, by assuming a central fiber network plug, whose radius is determined by the yield stress. According to the model the plug constrains the size of the turbulent eddies in the surrounding annulus, with the effect of a reduced friction factor as compared to Newtonian flow. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4766198]

BibTeX

@article{ ISI:000312033200002,
Author = {Gillissen, J. J. J. and Hoving, J. P.},
Title = {Self-Similar Drag Reduction in Plug-Flow of Suspensions of Macroscopic Fibers},
Journal = {Physics of Fluids},
Year = {2012},
Volume = {24},
Number = {11},
Month = {},
Abstract = {Pipe flow experiments show that turbulent drag reduction in plug-flow of concentrated suspensions of macroscopic fibers is a self-similar function of the wall shear stress over the fiber network yield stress. We model the experimental observations, by assuming a central fiber network plug, whose radius is determined by the yield stress. According to the model the plug constrains the size of the turbulent eddies in the surrounding annulus, with the effect of a reduced friction factor as compared to Newtonian flow. (C) 2012 American Institute of Physics. {[}http://dx.doi.org/10.1063/1.4766198]},
DOI = {10.1063/1.4766198},
Pages = {111702},
ISSN = {1070-6631},
Unique-ID = {ISI:000312033200002},
}

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