Abstract

A hierarchical model for plasma transport is proposed which includes nonlinear interaction between different scale lengths. Two examples are shown for the application of this model. One is non-local transport based on transport-MHD model. Plasma rotation is produced by E×B nonlinearity, which converts heating source to momentum. Synergetic effect between plasma rotation and local (gyro-Bohm) transport produces non-local transport in this model. The other example involves multi-scale turbulence by ion temperature gradient-driven drift wave, and short wavelength ion temperature gradient driven drift wave. It is shown that non-adiabatic electron response produces the particle pinch effect. Future trends of simulation research regarding plasma turbulence are also discussed.

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