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

McComb, W D and Linkmann, M F and Berera, A and Yoffe, S R and Jankauskas, B (2015) Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers. Journal of Physics A: Mathematical and Theoretical, 48 (25). 25FT01. ISSN 1751-8113

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    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-organised 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).

    Creators(s): McComb, W D, Linkmann, M F, Berera, A, Yoffe, S R ORCID logoORCID: https://orcid.org/0000-0002-6723-4990 and Jankauskas, B;
    Item type:Article
    ID code:53336
    Notes:Data available online: http://dx.doi.org/10.7488/ds/250
    Keywords:navier-stokes equations, flow visualisation, flow imaging, turbulence , Physics, Physics and Astronomy(all)
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:10 Jun 2015 14:30
    Last modified:22 Feb 2021 02:20
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/53336
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