Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers
Data CreatorMcComb, W. David
Linkmann, Moritz F.
Yoffe, Samuel R.
PublisherUniversity of Edinburgh. School of Physics and Astronomy
MetadataShow full item record
CitationMcComb, W. David; Linkmann, Moritz F.; Berera, Arjun; Yoffe, Samuel R.; Jankauskas, Bernardas. (2015). Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers, [dataset]. University of Edinburgh. School of Physics and Astronomy. http://dx.doi.org/10.7488/ds/250.
DescriptionWe 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).
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