Refine your search�ソスF     
Report No.
 - 

Transport simulation on transport barriers associated with radial electric field and rotations

Honda, Mitsuru; Takizuka, Tomonori; Fukuyama, Atsushi*

The relation among the pressure, toroidal and poloidal rotations and radial electric field $$E_r$$ is studied in a plasma with transport barriers by using a TASK/TX code. The neoclassical poloidal rotation driving mechanism driven by the ion temperature gradient $$T_i'$$, which is important especially in ITB plasmas with a steep $$T_i'$$, has been implemented in TASK/TX. Transport simulations with CDBM05 model clarifies that the toroidal rotation profile is governed by the profiles of the external torque and the anomalous perpendicular viscosity. Comparison between the ITB plasmas with and without the density barrier shows the clear difference in the profiles of $$E_r$$ and the resultant $$Etimes B$$ shear, due to the slight difference in the pressure gradient. In the steeper ITB plasmas, the clear notched structure is observed in $$E_r$$ profile, while not in the toroidal rotation profile. Even in that case, the toroidal rotation profile seems insensitive to the background plasma profiles.

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.