Effect of plasma subsonic toroidal flows induced by Alfven waves on transport processes in the edge of elongated tokamaks

Citation
Vs. Tsypin et al., Effect of plasma subsonic toroidal flows induced by Alfven waves on transport processes in the edge of elongated tokamaks, BRAZ J PHYS, 31(1), 2001, pp. 34-41
Citations number
35
Categorie Soggetti
Physics
Journal title
BRAZILIAN JOURNAL OF PHYSICS
ISSN journal
01039733 → ACNP
Volume
31
Issue
1
Year of publication
2001
Pages
34 - 41
Database
ISI
SICI code
0103-9733(200103)31:1<34:EOPSTF>2.0.ZU;2-C
Abstract
There is a renewed interest in using Alfven waves (AW) in tokamak plasmas. Previously, AW were actively explored mostly for current drive and plasma h eating in tokamaks. Presently, the possibility of the anomalous and neoclas sical transport suppression by AW in tokamak plasmas is being vividly discu ssed. AW can also induce poloidal and toroidal plasma rotation. Toroidal pl asma rotation can reach the subsonic level. These flows can substantially a ffect neoclassical transport both in collisional and weakly collisional pla smas. In this paper, the effect of plasma subsonic toroidal flows induced b y Alfven waves on transport processes in the edge of elongated tokamak is i nvestigated. The dependence of poloidal plasma rotation and ion heat conduc tivity on the elongation parameter and the ratio of induced toroidal veloci ty to the sonic speed are analytically obtained.