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
¥