Evidence map›Paper›PMID 34732570›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Experimental observation of the origin and structure of elastoinertial turbulence.

George H Choueiri, Jose M Lopez, Atul Varshney, Sarath Sankar, Björn Hof

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Experimental evidence for the continuous transition between elastic and elastoinertial turbulence.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Experimental insights into elasto-inertial transitions in Taylor-Couette flows.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

George H ChoueiriInstitute of Science and Technology, 3400 Klosterneuburg, Austria.ORCID https://orcid.org/0000-0002-0154-083X
Jose M LopezInstitute of Science and Technology, 3400 Klosterneuburg, Austria.ORCID https://orcid.org/0000-0002-0384-2022
Atul VarshneyInstitute of Science and Technology, 3400 Klosterneuburg, Austria.ORCID https://orcid.org/0000-0002-3072-5999
Sarath SankarInstitute of Science and Technology, 3400 Klosterneuburg, Austria.
Björn HofInstitute of Science and Technology, 3400 Klosterneuburg, Austria; bhof@ist.ac.at.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Turbulence generally arises in shear flows if velocities and hence, inertial forces are sufficiently large. In striking contrast, viscoelastic fluids can exhibit disordered motion even at vanishing inertia. Intermediate between these cases, a state of chaotic motion, "elastoinertial turbulence" (EIT), has been observed in a narrow Reynolds number interval. We here determine the origin of EIT in experiments and show that characteristic EIT structures can be detected across an unexpectedly wide range of parameters. Close to onset, a pattern of chevron-shaped streaks emerges in qualitative agreement with linear and weakly nonlinear theory. However, in experiments, the dynamics remain weakly chaotic, and the instability can be traced to far lower Reynolds numbers than permitted by theory. For increasing inertia, the flow undergoes a transformation to a wall mode composed of inclined near-wall streaks and shear layers. This mode persists to what is known as the "maximum drag reduction limit," and overall EIT is found to dominate viscoelastic flows across more than three orders of magnitude in Reynolds number.

Indexed as

drag reductionelastic instabilityelastoinertial turbulenceviscoelastic flows

Identifiers

PMID34732570
PMCPMC8609324

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.