Ö. Gürcan

The role of different nonlinearities and potential vorticity conservation in two-dimensional fluid ITG models

The nature of turbulent energy cascade of simple two-dimensional fluid models of ion temperature gradient driven turbulence is studied in detail. Notably, it is observed that a minimal two-field model of toroidal ITG, behaves qualitatively differently with or without the diamagnetic nonlinearity. In its absence, the zo...