Numerical assessment of ion turbulent thermal transport scaling laws

摘要

Numerical simulations of ion temperature gradient driven turbulence are carried out to investigate the parametric dependence of ion thermal transport on the reduced gyroradius and on the local safety factor. Whereas the simulations show a clear proportionality of the conductivety to the gyroradius, the dependence on the safety factor cannot be represented as a simple power like the one exhibited by the empirical scaling laws.