Drag Reduction by Polymers in Wall Bounded Turbulence

Details Drag Reduction by Polymers in Wall Bounded Turbulence Drag Reduction by Polymers in Wall Bounded Turbulence

2003-07-21

arxiv.org/abs/nlin/0307034v2

Phys. Rev. Letters, v. 92 244503 (2004)

Nonlinear Sciences

Chaotic Dynamics

4 pages, 1 fig., included, PRL, submitted

Scientific paper

10.1103/PhysRevLett.92.244503

We address the mechanism of drag reduction by polymers in turbulent wall bounded flows. On the basis of the equations of fluid mechanics we present a quantitative derivation of the "maximum drag reduction (MDR) asymptote" which is the maximum drag reduction attained by polymers. Based on Newtonian information only we prove the existence of drag reduction, and with one experimental parameter we reach a quantitative agreement with the experimental measurements.

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