Stretching of polymers in a random three-dimensional flow

被引：60

作者：

Groisman, A ^{[1
]}

Steinberg, V ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.86.934

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Behavior of a dilute polymer solution in a random three-dimensional flow with an average shear is studied experimentally. Polymer contribution to the shear stress is found to be more than 2 orders of magnitude higher than in a laminar shear flow. The results indicate that the polymer molecules are strongly stretched by the random motion of the fluid.

引用

页码：934 / 937

页数：4

共 17 条

[1]

[Anonymous], 1972, S MATH

[2] Universal long-time properties of Lagrangian statistics in the Batchelor regime and their application to the passive scalar problem [J].