Figure 7From: Finite element methods on composite meshes for tuning plasma equilibria in tokamaksExample HL-2M. Contour lines of the magnetic flux ψ for three different configuration of HL-2M. The location \((r_{\mathrm{{max}}} (\psi),z_{\mathrm{{max}}}(\psi))\) of the maximum of ψ is indicated with a green circle. The location \((r_{\mathrm{X}},z_{\mathrm{X}})\) of the discrete saddle points of ψ is indicated by black circles. The magenta line indicates the contour line that contains the plasma boundaryBack to article page