Small-scale energy conservation
¥Energy in SS eddies is conserved if they are initially isotropic
(Kraichnan 1976)
¥1. Dissipation: ellipse cannot get too thin.
¥2. Nonisotropic eddies: Modulational Instability (LorenzÕ72,
GillÕ74, Manin, Nazarenko, 1994; Manfroi, Young, 1999; Smolyakov
et al, 2000)
¥3. Breaking of the scale separation due
to inverse
cascade