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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).
|Journal||Journal of Physics A: Mathematical and Theoretical|
|Publication status||Published - 26 Jun 2015|
- isotropic turbulence
- transition to turbulence
Ball, R., Berera, A., Boyle, P., Callison-Burch, C., Del Debbio, L., Gardi, E., Kennedy, A., O'Connell, D., Zwicky, R., Berera, A., Boyle, P., Buckley, A., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., O'Connell, D., Smillie, J. & Zwicky, R.
1/10/14 → 30/09/18
Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers
McComb, W. D. (Creator), F. Linkmann, M. (Creator), Berera, A. (Creator), Yoffe, S. R. (Creator) & Jankauskas, B. (Creator), Edinburgh DataShare, 27 May 2015