Comparison of theory and direct numerical simulations of drag reduction by rodlike polymers in turbulent channel flows
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AbstractNumerical simulations of turbulent channel flows, with or without additives, are limited in the extent of the Reynolds number (Re) and Deborah number (De). The comparison of such simulations to theories of drag reduction, which are usually derived for asymptotically high Re and De, calls for some care. In this paper we present a study of drag reduction by rodlike polymers in a turbulent channel flow using direct numerical simulation and illustrate how these numerical results should be related to the recently developed theory.
All Author(s) ListBenzi R, Ching ESC, De Angelis E, Procaccia I
Journal namePhysical Review E
Year2008
Month4
Day1
Volume Number77
Issue Number4
PublisherAmerican Physical Society
ISSN1539-3755
eISSN1550-2376
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics; Physics, Fluids & Plasmas; PHYSICS, FLUIDS & PLASMAS; Physics, Mathematical; PHYSICS, MATHEMATICAL

Last updated on 2020-25-09 at 01:19