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 ![]() | Item type: | Article |
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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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