The MHD equilibrium solutions of a toroidal plasma with non-circular cross-section and linear current distribution are written in terms of a fast convergent series.
Variable elongations (k=1.1-1.4) of the elliptic plasma cross section and its areas are determined by fitting the measured magnetic properties on the basis of a free boundary MHD equilibrium theory.
Expanding the magnetic flux in terms of the deviation from the magnetic axis, we have studied the MHD equilibrium and localized mode instability of an axial symmetric plasma torus with a small triangular and elliptical deformation on its cross-section.
The mathematical method of a free-boundary toroidal MHD equilibrium code SWEQU is described. Some open divertor equilibrium configurations and the corresponding currents in poloidal field coils have been determined with this code.
In this paper, the influence on the magnetical surface, MHD equilibrium and replacement stability is investigated for the axisymmetrical stray field produced by currents in the toroidal-field coils and control coils of the HLQ-I tokamak.
Combining the MHD equilibrium equation of axisymmetric plasma with a flux sur-face-averaged description of the plasma, the evolutional configurations of adiabatic com-pressional plasma equilibria are computed.
The MHD-limitedβ value increases as the plasma is heated and in fact in the burn phase approaches the value characteristic of a shape-optimized MHD equilibrium.
We determine the photospheric boundary conditions which maximize the magnetic energy released by a loss of ideal-MHD equilibrium in two-dimensional flux-rope models.
However, we find that flux-rope models which use this approximation predict the occurrence of an eruption due to a loss of ideal-MHD equilibrium even when the corresponding exact solution shows that no such eruption occurs.
Expanding the magnetic flux in terms of the deviation from the magnetic axis, we have studied the MHD equilibrium and localized mode instability of an axial symmetric plasma torus with a small triangular and elliptical deformation on its cross-section. The optimization of the configuration has been analyzed and an optimal factor of the triangular deformation has been given. Our analysis shows that it is possible to strengthen ohmic heating substantially by selecting suitable factors of the trian...
A generized method of iteration is developed for solving the equation of plasma MHD equilibrium with free boundary in axial-symmetric tori with non-circular cross-section and conducting shell. The plasma current distributions may be peaked at the center of the plasma or have various forms of skin distributions. The conditions under which this method can effectively be used are also discussed.
The MHD equilibrium solutions of a toroidal plasma with non-circular cross-section and linear current distribution are written in terms of a fast convergent series. The ideal and the resistive localized-mode instabilities over the whole cross-section of the plasma are numerically studied for several typical configurations by use of the Mercier criterion and Glasser criterion.