Turbulent drag reduction by polymers

被引：42

作者：

Bonn, D

Amarouchène, Y

Wagner, C

Douady, S

Cadot, O

机构：

[1] Univ Amsterdam, Van Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands

[2] ENS, Phys Stat Lab, F-75231 Paris, France

[3] Univ Bordeaux 1, CPMOH, F-33405 Talence, France

[4] Univ Saarland, Inst Expt Phys, Saarbrucken, Germany

[5] ENSTA, F-91761 Palaiseau, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2005年 / 17卷 / 14期

关键词：

D O I：

10.1088/0953-8984/17/14/008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The reduction of turbulent energy dissipation by addition of polymers is studied experimentally. We first address the question of where the action of the polymers is taking place. Subsequently, we show that there is a direct correlation of drag reduction with the elongational viscosity of the polymers. For this, the reduction of turbulent energy dissipation by addition of the biopolymer DNA is studied. These results open the way for a direct visualization study of the polymer conformation in a turbulent boundary layer.

引用

页码：S1195 / S1202

页数：8

共 23 条

[1] Inhibition of the finite-time singularity during droplet fission of a polymeric fluid [J].