Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers

W. D. McComb; M. F. Linkmann; A. Berera; S. R. Yoffe; B. Jankauskas

doi:10.1088/1751-8113/48/25/25FT01

Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers

W. D. McComb, M. F. Linkmann, A. Berera, S. R. Yoffe, B. Jankauskas

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We observe a symmetry-breaking transition from a turbulent to a self-organized state in direct numerical simulation of the Navier-Stokes equation at very low Reynolds number. In this self-organized state the kinetic energy is contained only in modes at the lowest resolved wavenumber, the skewness vanishes, and visualization of the flows shows a lack of small-scale structure, with the vorticity and velocity vectors becoming aligned (a Beltrami flow).

Original language	English
Article number	25FT01
Journal	Journal of Physics A: Mathematical and Theoretical
Volume	48
Issue number	25
DOIs	https://doi.org/10.1088/1751-8113/48/25/25FT01
Publication status	Published - 26 Jun 2015

Keywords / Materials (for Non-textual outputs)

isotropic turbulence
self-organization
transition to turbulence

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10.1088/1751-8113/48/25/25FT01

1751-8121_48_25_25FT01Final published version, 1.1 MB

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@article{5b22ace8b8fc4bd18238b3f24913256a,

title = "Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers",

abstract = "We observe a symmetry-breaking transition from a turbulent to a self-organized state in direct numerical simulation of the Navier-Stokes equation at very low Reynolds number. In this self-organized state the kinetic energy is contained only in modes at the lowest resolved wavenumber, the skewness vanishes, and visualization of the flows shows a lack of small-scale structure, with the vorticity and velocity vectors becoming aligned (a Beltrami flow).",

keywords = "isotropic turbulence, self-organization, transition to turbulence",

author = "McComb, {W. D.} and Linkmann, {M. F.} and A. Berera and Yoffe, {S. R.} and B. Jankauskas",

note = "EP/K503034/1; EP/J018171/1 Date of Acceptance: 15/05/2015",

year = "2015",

month = jun,

day = "26",

doi = "10.1088/1751-8113/48/25/25FT01",

language = "English",

volume = "48",

journal = "Journal of Physics A: Mathematical and Theoretical",

issn = "1751-8113",

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TY - JOUR

T1 - Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers

AU - McComb, W. D.

AU - Linkmann, M. F.

AU - Berera, A.

AU - Yoffe, S. R.

AU - Jankauskas, B.

N1 - EP/K503034/1; EP/J018171/1 Date of Acceptance: 15/05/2015

PY - 2015/6/26

Y1 - 2015/6/26

N2 - We observe a symmetry-breaking transition from a turbulent to a self-organized state in direct numerical simulation of the Navier-Stokes equation at very low Reynolds number. In this self-organized state the kinetic energy is contained only in modes at the lowest resolved wavenumber, the skewness vanishes, and visualization of the flows shows a lack of small-scale structure, with the vorticity and velocity vectors becoming aligned (a Beltrami flow).

AB - We observe a symmetry-breaking transition from a turbulent to a self-organized state in direct numerical simulation of the Navier-Stokes equation at very low Reynolds number. In this self-organized state the kinetic energy is contained only in modes at the lowest resolved wavenumber, the skewness vanishes, and visualization of the flows shows a lack of small-scale structure, with the vorticity and velocity vectors becoming aligned (a Beltrami flow).

KW - isotropic turbulence

KW - self-organization

KW - transition to turbulence

UR - http://www.scopus.com/inward/record.url?scp=84930965962&partnerID=8YFLogxK

U2 - 10.1088/1751-8113/48/25/25FT01

DO - 10.1088/1751-8113/48/25/25FT01

M3 - Article

AN - SCOPUS:84930965962

SN - 1751-8113

VL - 48

JO - Journal of Physics A: Mathematical and Theoretical

JF - Journal of Physics A: Mathematical and Theoretical

IS - 25

M1 - 25FT01

ER -

Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers

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Keywords / Materials (for Non-textual outputs)

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