Dynamics of Elasto-Inertial Turbulence in Flows with Polymer Additives

Terrapon, Vincent; Dubief, Yves; Soria, Julio

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Dynamics of Elasto-Inertial Turbulence in Flows with Polymer Additives

Terrapon, Vincent; Dubief, Yves; Soria, Julio

2013 • In Proceedings of the 8th International Symposium on Turbulence and Shear Flow Phenomena (TSFP-8)

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https://hdl.handle.net/2268/156079

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Keywords :

Elasto-inertial Turbulence; Polymers; Maximum drag reduction asymptote; Channel flow; Pressure Poisson equation

Abstract :

[en] The dynamics of elasto-inertial turbulence is investigated numerically from the perspective of the coupling between polymer dynamics and flow structures. In particular, direct numerical simulations of channel flow with Reynolds numbers ranging from 1000 to 6000 are used to study the formation and dynamics of elastic instabilities and their effects on the flow. Based on the splitting of the pressure into inertial and polymeric contributions, it is shown that the trains of cylindrical structures around sheets of high polymer extension that are characteristics to elasto-inertial turbulence are mostly driven by polymeric contributions.

Disciplines :

Mechanical engineering
Chemical engineering

Author, co-author :

Terrapon, Vincent ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Modélisation et contrôle des écoulements turbulents

Dubief, Yves; University of Vermont

Soria, Julio; Monash University

Language :

English

Title :

Dynamics of Elasto-Inertial Turbulence in Flows with Polymer Additives

Publication date :

30 August 2013

Event name :

International Symposium on Turbulence and Shear Flow Phenomena (TSFP-8)

Event place :

Poitiers, France

Event date :

from 28-08-2013 to 30-08-2013

Audience :

International

Main work title :

Proceedings of the 8th International Symposium on Turbulence and Shear Flow Phenomena (TSFP-8)

Pages :

1-6

European Projects :

FP7 - 304073 - VISCELTURBFLOW - Computational study of macro- and microscopic turbulence controlled by polymer additives

Funders :

CE - Commission Européenne [BE]

Available on ORBi :

since 17 September 2013

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Bibliography

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