Article (Scientific journals)
Elasto-Inertial Turbulence
Dubief, Yves; Terrapon, Vincent; Hof, Björn
2023In Annual Review of Fluid Mechanics, 55, p. 675-705
Peer Reviewed verified by ORBi
 

Files


Full Text
Annual_Reviews_EIT-5.pdf
Author preprint (4.65 MB)
Request a copy
Full Text Parts
annurev-fluid-032822-025933-2.pdf
Publisher postprint (3.89 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
elasto-inertial turbulence; elastic turbulence; elastic instabilities; polymer drag reduction; coherent structures; transitional flows; numerical simulation; viscoelastic models
Abstract :
[en] The dilution of minute concentration of polymers in wall-bounded flows is well-known for its unparalleled ability to reduce turbulent friction drag. Another phenomenon, elasto-inertial turbulence (EIT), has been far less studied even though elastic instabilities have already been observed in dilute polymer solutions before the discovery of polymer drag reduction. EIT is a chaotic state driven by polymer dynamics that is observed across many orders of magnitude in Reynolds number. It involves energy transfer from small elastic scales to large flow scales. The investigation of the mechanisms of EIT offers the possibility to better understand other complex phenomena such as elastic turbulence and maximum drag reduction. In this review, we survey recent research efforts that are advancing the understanding of the dynamics of EIT. We highlight the fundamental differences between EIT and Newtonian/inertial turbulence from the perspective of experiments, numerical simulations, instabilities, and coherent structures. Finally, we discuss the possible links between EIT and elastic turbulence and polymer drag reduction, as well as the remaining challenges in unraveling the self-sustaining mechanism of EIT.
Precision for document type :
Review article
Disciplines :
Mechanical engineering
Author, co-author :
Dubief, Yves
Terrapon, Vincent  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Modélisation et contrôle des écoulements turbulents
Hof, Björn;  Institute of Science and Technology Austria
Language :
English
Title :
Elasto-Inertial Turbulence
Publication date :
2023
Journal title :
Annual Review of Fluid Mechanics
ISSN :
0066-4189
eISSN :
1545-4479
Publisher :
Annual Reviews, United States
Volume :
55
Pages :
675-705
Peer reviewed :
Peer Reviewed verified by ORBi
Tags :
CÉCI : Consortium des Équipements de Calcul Intensif
Tier-1 supercomputer
Funders :
F.R.S.-FNRS - Fund for Scientific Research [BE]
Available on ORBi :
since 29 June 2022

Statistics


Number of views
379 (32 by ULiège)
Number of downloads
7 (6 by ULiège)

Scopus citations®
 
14
Scopus citations®
without self-citations
13
OpenCitations
 
0

Bibliography


Similar publications



Contact ORBi