Study of plasma rotation in the Tokamak TCABR

Author(s)

José Helder Facundo Severo

• Document type: Doctoral Thesis
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Instituto de Física (IF/SBI)
• Defense date: 2003-06-11

Examining board members

Ivan Cunha Nascimento; Artour Elfimov; Gerson Otto Ludwig; Munemasa Machida; Homero Santiago Maciel

• Advisor: Ivan Cunha Nascimento

Abstract

In the present work we investigated theorically and experimentally the plasma residual rotation in the tokamak TCABR. Using the neoelassical theory, general expressions for the poloidal velocity and heat flux were obtained for tokamaks with arbitrary plasma cross-sections, and subsonic toroidal flows. The dependency of the poloidal velocity and the heat flow with Mach number a were analyzed. It was found that the poloidal velocity changes sign for a ccrtain valuc alpfa = alpha 0, a critical value ak of a exists corresponding to a maximum value of ion poloidal velocity, and that for alpha > alpha k the poloidal velocity is a decreasing function of alpha. (AU)