Enhancing heat transfer at the micro-scale using elastic turbulence

被引：1

作者：

RDWhalley ^{[1
]}

WMAbed ^{[1
]}

DJCDennis ^{[1
]}

RJPoole ^{[1
,2
]}

机构：

[1] School of Engineering,University of Liverpool

[2] LMFA,Universite de Lyon,Ecole Centrale de Lyon

来源：

Theoretical & Applied Mechanics Letters | 2015年 / 5 卷 / 03期

关键词：

Elastic turbulence; Viscoelasticity; Serpentine channel; Micro-mixing; Heat transfer;

D O I：

暂无

中图分类号：

O343 [弹性力学];

学科分类号：

080102 ;

摘要：

Small concentrations of a high-molecular-weight polymer have been used to create so-called "elastic turbulence" in a micro-scale serpentine channel geometry.It is known that the interaction of large elastic stresses created by the shearing motion within the fluid flow with streamline curvature of the serpentine geometry leads initially to a purely-elastic instability and then the generation of elastic turbulence.We show that this elastic turbulence enhances the heat transfer at the micro-scale in this geometry by up to300%under creeping flow conditions in comparison to that achieved by the equivalent Newtonian fluid flow.

引用

页码：103 / 106

页数：4

共 23 条

[1]

Purely Elastic Instabilities in Viscometric Flows[J] . E S G Shaqfeh. &nbspAnnual Review of Fluid Mechanics . 1996

[2]

Elastic turbulence in curvilinear flows of polymer solutions. Groisman A,Steinberg V. New J.Phys . 2004

[3]

Purely nonlinear elastic instability in parallel shear flows. L.Pan,A.N.Morozov,C.Wagner,P.E.Arratia. Physics Review Letters . 2013

[4] Lab on a chip [P].

DURNIAK TIMOTHY[US] ;

FRIEDLANDER ROBERT R[US] ;

KRAEMER JAMES R[US] .

美国专利 :US8911668B2 ,2014-12-16

[5]

Transitional pathway to elastic turbulence in torsional, parallel-plate flow of a polymer solution. Schiamberg, Bruce A.,Shereda, Laura T.,Hu, Hua,Larson, Ronald G. Journal of Fluid Mechanics . 2006

[6]

Turbulent flows in highly elastic wormlike micelles. Julien Beaumont,Nicolas Louvet,Thibaut Divoux,Marc-Antoine Fardin,Hugues Bodiguel,S,ra Lerouge,Sébastien Manneville,Annie Colin. Soft Matter . 2013

[7]

Mixing by polymers: Experimental test of decay regime of mixing. Burghelea, T.,Segre, E.,Steinberg, V. Physical Review . 2004

[8]

Microfluidics: fluid physics at the nanoliter scale. Squires Todd M,Quake Stephen R. Reviews of Modern Physics . 2005

[9]

Geometric scaling of a purely elastic flow instability in serpentine channels. J. Zilz,R. J. Poole,M. A. Alves,D. Bartolo,B. Levaché,A. Lindner. Journal of Fluid Mechanics . 2012

[10]

An introductory essay on subcritical instabilities and the transition to turbulence in visco-elastic parallel shear flows[J] . Alexander N. Morozov,Wim van Saarloos. &nbspPhysics Reports . 2007 (3)

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