Turbulence Spreading through Shear Flow Layer

A recent study of turbulence spreading [1] has shown that a significant level of turbulence can penetrate from the linearly unstable region to the region dominated by self-generated zonal flows. In this work, we study turbulence spreading through a mean ExB shear layer using both simple analytic model and nonlinear gyrokinetic particle (GTC) simulations. \newline \newline [1] T.S. Hahm, P.H. Diamond, Z. Lin et al., On the dynamics of edge-core coupling, To appear in Phys. Plasmas (2005).