Theory of concentration dependence in drag reduction by polymers and of the maximum drag reduction asymptote
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AbstractA simple model of the effect of polymer concentration on the amount of drag reduction in turbulence is presented, simulated, and analyzed. The qualitative phase diagram of drag coefficient versus Reynolds number (Re) is recaptured in this model, including the theoretically elusive onset of drag reduction and the maximum drag reduction (MDR) asymptote. The Re-dependent drag and the MDR are analytically explained, and the dependence of the amount of drag on material parameters is rationalized.
All Author(s) ListBenzi R, Ching ESC, Horesh N, Procaccia I
Journal namePhysical Review Letters
Year2004
Month2
Day20
Volume Number92
Issue Number7
PublisherAMERICAN PHYSICAL SOC
ISSN0031-9007
eISSN1079-7114
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics; Physics, Multidisciplinary; PHYSICS, MULTIDISCIPLINARY

Last updated on 2020-15-09 at 02:25