Elastic energy transfer by flexible polymers in fluid turbulence

Eberhard Bodenschatz; Heng Dong Xi; Haitao Xu

Elastic energy transfer by flexible polymers in fluid turbulence

Eberhard Bodenschatz
, Heng Dong Xi
, Haitao Xu

Max Planck Institute for Dynamics and Self-Organization

Research output: Contribution to conference › Paper › peer-review

Abstract

We present a study of the energy transfer in the bulk of a turbulent flow with dilute long-chain polymer additives. Based on prior work by de Gennes and Tabor [1, 2] we introduce a theory that balances the energy flux through the turbulent cascade with that of the energy flux into the elastic degrees of freedom of the dilute polymer solution. We propose a refined elastic length scale, rε, which describes the effect of polymer elasticity on the turbulence energy cascade. Our experimental results agree excellently with this new energy flux balance theory.

Original language	English
State	Published - 2020
Externally published	Yes
Event	14th European Turbulence Conference, ETC 2013 - Lyon, France Duration: 1 Sep 2013 → 4 Sep 2013

Conference

Conference	14th European Turbulence Conference, ETC 2013
Country/Territory	France
City	Lyon
Period	1/09/13 → 4/09/13

Cite this

@conference{58f4168897b34320a310b244380888e2,

title = "Elastic energy transfer by flexible polymers in fluid turbulence",

abstract = "We present a study of the energy transfer in the bulk of a turbulent flow with dilute long-chain polymer additives. Based on prior work by de Gennes and Tabor [1, 2] we introduce a theory that balances the energy flux through the turbulent cascade with that of the energy flux into the elastic degrees of freedom of the dilute polymer solution. We propose a refined elastic length scale, rε, which describes the effect of polymer elasticity on the turbulence energy cascade. Our experimental results agree excellently with this new energy flux balance theory.",

author = "Eberhard Bodenschatz and Xi, \{Heng Dong\} and Haitao Xu",

note = "Publisher Copyright: Copyright {\textcopyright} ETC 2013 - 14th European Turbulence Conference.All rights reserved.; 14th European Turbulence Conference, ETC 2013 ; Conference date: 01-09-2013 Through 04-09-2013",

year = "2020",

language = "英语",

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TY - CONF

T1 - Elastic energy transfer by flexible polymers in fluid turbulence

AU - Bodenschatz, Eberhard

AU - Xi, Heng Dong

AU - Xu, Haitao

PY - 2020

Y1 - 2020

N2 - We present a study of the energy transfer in the bulk of a turbulent flow with dilute long-chain polymer additives. Based on prior work by de Gennes and Tabor [1, 2] we introduce a theory that balances the energy flux through the turbulent cascade with that of the energy flux into the elastic degrees of freedom of the dilute polymer solution. We propose a refined elastic length scale, rε, which describes the effect of polymer elasticity on the turbulence energy cascade. Our experimental results agree excellently with this new energy flux balance theory.

AB - We present a study of the energy transfer in the bulk of a turbulent flow with dilute long-chain polymer additives. Based on prior work by de Gennes and Tabor [1, 2] we introduce a theory that balances the energy flux through the turbulent cascade with that of the energy flux into the elastic degrees of freedom of the dilute polymer solution. We propose a refined elastic length scale, rε, which describes the effect of polymer elasticity on the turbulence energy cascade. Our experimental results agree excellently with this new energy flux balance theory.

UR - https://www.scopus.com/pages/publications/85085775668

M3 - 论文

AN - SCOPUS:85085775668

T2 - 14th European Turbulence Conference, ETC 2013

Y2 - 1 September 2013 through 4 September 2013

ER -

Elastic energy transfer by flexible polymers in fluid turbulence

Abstract

Conference

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