Neoclassical impurity flux in presence of turbulent generated poloidal asymmetries and pressure anisotropy

Abstract

Poloidal asymmetries of impurities are commonly observed experimentally. Density asymmetry is already known to impact significantly the neoclassical prediction impurity fluxes. In this article, effect pressure and anisotropy on flux derived analytically. This compared with simulations performed gyrokinetic code GYSELA, featuring both turbulent transports. A fair agreement found between analytical result simulation. On special cases which considered, effects shown play a prominent role in modification transport.

Publication
Plasma Physics and Controlled Fusion