Figure 15 - uploaded by Johan Anderson
Content may be subject to copyright.
The top plot shows the order parameter r defined in (45) or (46) as a function of time for a DNS. The bottom plot shows the amplitudes of a triad pair with q = 0.5 and ky = 1.125 in order to compare with the earlier plots. The saturation levels for the amplitudes are different because of the normalization factor N −1 x N −1 y in front of the nonlinear term implied in discrete Fourier transforms.

The top plot shows the order parameter r defined in (45) or (46) as a function of time for a DNS. The bottom plot shows the amplitudes of a triad pair with q = 0.5 and ky = 1.125 in order to compare with the earlier plots. The saturation levels for the amplitudes are different because of the normalization factor N −1 x N −1 y in front of the nonlinear term implied in discrete Fourier transforms.

Source publication
Preprint
Full-text available
Hasegawa-Wakatani system, commonly used as a toy model of dissipative drift waves in fusion devices is revisited with considerations of phase and amplitude dynamics of its triadic interactions. It is observed that a single resonant triad can saturate via three way phase locking where the phase differences between dominant modes converge to constant...