Emergence of chaos in a viscous solution of rods

被引：5

作者：

Plan, Emmanuel L. C. Vi M. ^{[1
]}

Musacchio, Stefano ^{[1
]}

Vincenzi, Dario ^{[1
]}

机构：

[1] Univ Cote Azur, CNRS, LJAD, F-06108 Nice, France

来源：

PHYSICAL REVIEW E | 2017年 / 96卷 / 05期

关键词：

VISCOELASTIC KOLMOGOROV FLOW; TURBULENT DRAG REDUCTION; ELASTIC TURBULENCE; HEAT-TRANSFER; MICROFLUIDICS;

D O I：

10.1103/PhysRevE.96.053108

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

It is shown that the addition of small amounts of microscopic rods in a viscous fluid at low Reynolds number causes a significant increase of the flow resistance. Numerical simulations of the dynamics of the solution reveal that this phenomenon is associated to a transition from laminar to chaotic flow. Polymer stresses give rise to flow instabilities which, in turn, perturb the alignment of the rods. This coupled dynamics results in the activation of a wide range of scales, which enhances the mixing efficiency of viscous flows.

引用

页数：4

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