Abstract
The radial electric field and transport barrier formation are simulated by using B2SOLPS0.5.2D transport code including all important perpendicular currents, diamagnetic and E × B drifts. The main results of simulation demonstrated the following results: (1) The plasma density profile is quite sensitive to the temperature heating of plasma. (2) The radial electric field in the vicinity of separatrix remains of order of neoclassical radial electric field, its dependencies on local and global plasma parameters. (3) The difference between radial electric field calculated by the code and neoclassical electric field at different plasma temperature and density can be explained by the contribution of toroidal velocity.
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