Parallel transport in ideal magnetohydrodynamics and applications to resistive wall modes

1996 ◽  
Vol 3 (6) ◽  
pp. 2469-2471 ◽  
Author(s):  
John M. Finn ◽  
Richard A. Gerwin
Keyword(s):  
Parallel Transport ◽  
Resistive Wall ◽  
Ideal Magnetohydrodynamics ◽  
Resistive Wall Modes

Coupling Between a 3-D Integral Eddy Current Formulation and a Linearized MHD Model for the Analysis of Resistive Wall Modes

2008 ◽  
Vol 44 (6) ◽  
pp. 1654-1657 ◽  
Author(s):  
R. Albanese ◽  
Y.Q. Liu ◽  
A. Portone ◽  
G. Rubinacci ◽  
F. Villone
Keyword(s):  
Eddy Current ◽  
Current Formulation ◽  
Resistive Wall ◽  
Mhd Model ◽  
Resistive Wall Modes

Comprehensive control of resistive wall modes in DIII-D advanced tokamak plasmas

2009 ◽  
Vol 49 (12) ◽  
pp. 125003 ◽  
Author(s):  
M. Okabayashi ◽  
I.N. Bogatu ◽  
M.S. Chance ◽  
M.S. Chu ◽  
A.M. Garofalo ◽  
...  
Keyword(s):  
Tokamak Plasmas ◽  
Resistive Wall ◽  
Resistive Wall Modes

Ferromagnetic effects in the theory of slow and fast resistive wall modes in tokamaks

2014 ◽  
Vol 21 (2) ◽  
pp. 022516 ◽  
Author(s):  
V. D. Pustovitov ◽  
V. V. Yanovskiy
Keyword(s):  
Resistive Wall ◽  
Resistive Wall Modes

Dynamics and control of resistive wall modes with magnetic feedback control coils: experiment and theory

2005 ◽  
Vol 45 (4) ◽  
pp. 285-293 ◽  
Author(s):  
M.E Mauel ◽  
J Bialek ◽  
A.H Boozer ◽  
C Cates ◽  
R James ◽  
...  
Keyword(s):  
Feedback Control ◽  
Dynamics And Control ◽  
Resistive Wall ◽  
And Control ◽  
Resistive Wall Modes

Control of resistive wall modes in tokamak plasmas

2014 ◽  
Vol 24 ◽  
pp. 15-24 ◽  
Author(s):  
M. Ariola ◽  
G. De Tommasi ◽  
A. Pironti ◽  
F. Villone
Keyword(s):  
Tokamak Plasmas ◽  
Resistive Wall ◽  
Resistive Wall Modes

Plasma stability theory including the resistive wall effects

2015 ◽  
Vol 81 (6) ◽  
Author(s):  
V. D. Pustovitov
Keyword(s):  
Stability Theory ◽  
Nonlinear Function ◽  
Thin Wall ◽  
Conducting Wall ◽  
Resistive Wall ◽  
Energy Sink ◽  
The Stability ◽  
Resistive Wall Modes ◽  
Complex Growth Rate ◽  
Plasma Stabilization

Plasma stabilization due to a nearby conducting wall can provide access to better performance in some scenarios in tokamaks. This was proved by experiments with an essential gain in${\it\beta}$and demonstrated as a long-lasting effect at sufficiently fast plasma rotation in the DIII-D tokamak (see, for example, Straitet al.,Nucl. Fusion, vol. 43, 2003, pp. 430–440). The rotational stabilization is the central topic of this review, though eventually the mode rotation gains significance. The analysis is based on the first-principle equations describing the energy balance with dissipation in the resistive wall. The method emphasizes derivation of the dispersion relations for the modes which are faster than the conventional resistive wall modes, but slower than the ideal magnetohydrodynamics modes. Both the standard thin wall and ideal-wall approximations are not valid in this range. Here, these are replaced by an approach incorporating the skin effect in the wall. This new element in the stability theory makes the energy sink a nonlinear function of the complex growth rate. An important consequence is that a mode rotating above a critical level can provide a damping effect sufficient for instability suppression. Estimates are given and applications are discussed.

Sign in / Sign up

Export Citation Format

Share Document