Journal
NUCLEAR FUSION
Volume 53, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0029-5515/53/5/053006
Keywords
-
Categories
Ask authors/readers for more resources
The effect of a sheared toroidal equilibrium flow on the tearing mode stability index, Delta', is studied. A flow modified external kink equation for a single helicity mode is derived in a toroidal geometry. The corrections to Delta' arising from flow contributions are estimated on the basis of a boundary layer calculation. Toroidal shear flow is seen to have a destabilizing influence on the tearing mode in a manner similar to pure axial flows in a cylindrical geometry. However, the increase in Delta' as a function of increasing flow is seen to be smaller than the cylindrical case due to beneficial magnetic curvature effects. Shear flow associated stabilization, as observed in many recent experiments, might be arising from other physical effects such as toroidal mode couplings which are neglected in the present model.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available