K. Ichiguchi
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View article: Non-resonant global mode in LHD partial collapse with net toroidal current
Non-resonant global mode in LHD partial collapse with net toroidal current Open
A transition from an interchange mode to a non-resonant mode is found in the nonlinear magnetohydrodynamic simulation for the partial collapse in a large helical device (LHD) plasma with a net toroidal current. This transition can occur wh…
View article: Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor
Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor Open
The effect of the pitch modulation of the helical coils on the core plasma performance of the LHD-type helical fusion reactor has been examined. The analysis of the MHD stability and neoclassical transport for the pitch modulation α = 0.0 …
View article: Vacuum Configurations of D Shape Heliotron
Vacuum Configurations of D Shape Heliotron Open
The effects of the deformation of the flux surfaces into a “D shape” on vacuum heliotron configurations are examined numerically. In this study, one poloidal coil on the mid plane just inside the helical coils is assumed to be installed so…
View article: Three-Dimensional Numerical Analysis of Shear Flow Effects on MHD Stability in LHD Plasmas
Three-Dimensional Numerical Analysis of Shear Flow Effects on MHD Stability in LHD Plasmas Open
Effects of poloidal shear flow on the stability of interchange modes in a Large Helical Device (LHD) configuration are numerically studied. Three-dimensional (3D) numerical codes are utilized for the equilibrium and stability calculations.…
View article: Flow damping due to stochastization of the magnetic field
Flow damping due to stochastization of the magnetic field Open
View article: Three-Dimensional Numerical Analysis of Ion Diamagnetic Effects on Interchange Mode in Heliotron Plasmas
Three-Dimensional Numerical Analysis of Ion Diamagnetic Effects on Interchange Mode in Heliotron Plasmas Open
The influence of the ion diamagnetic flow on the resistive interchange mode including dissipation in the Large Helical Device (LHD) plasmas is investigated with three-dimensional (3D) magnetohydrodynamic (MHD) codes. The contribution on th…