Reynolds number dependence of drag reduction by rodlike polymers
BONN, Daniel
University of Amsterdam Van der Waals-Zeeman Institute [VAN DER WAALS-ZEEMAN INSTITUTE]
Laboratoire de Physique Statistique de l'ENS [LPS]
Department of Chemical Physics
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University of Amsterdam Van der Waals-Zeeman Institute [VAN DER WAALS-ZEEMAN INSTITUTE]
Laboratoire de Physique Statistique de l'ENS [LPS]
Department of Chemical Physics
BONN, Daniel
University of Amsterdam Van der Waals-Zeeman Institute [VAN DER WAALS-ZEEMAN INSTITUTE]
Laboratoire de Physique Statistique de l'ENS [LPS]
Department of Chemical Physics
< Reduce
University of Amsterdam Van der Waals-Zeeman Institute [VAN DER WAALS-ZEEMAN INSTITUTE]
Laboratoire de Physique Statistique de l'ENS [LPS]
Department of Chemical Physics
Language
en
Article de revue
This item was published in
Physics of Fluids. 2006, vol. 20, n° 6, p. 065108 (1-8)
American Institute of Physics
English Abstract
We present experimental and theoretical results addressing the Reynolds number (Re) dependence of drag reduction by sufficiently large concentrations of rod-like polymers in turbulent wall-bounded flows. It is shown that ...Read more >
We present experimental and theoretical results addressing the Reynolds number (Re) dependence of drag reduction by sufficiently large concentrations of rod-like polymers in turbulent wall-bounded flows. It is shown that when Re is small the drag is {\em enhanced}. On the other hand when Re increases the drag is reduced and eventually the Maximal Drag Reduction (MDR) asymptote is attained. The theory is shown to be in excellent agreement with experiments, rationalizing and explaining all the universal and the non-universal aspects of drag reduction by rod-like polymers.Read less <
Origin
Hal imported