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Variational integrators for reduced magnetohydrodynamics

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Figure

Figure 1: Vertices of a primal grid cell in a two-dimensional rectangular grid and field components at those vertices.
Figure 2: Orszag-Tang vortex. Time evolution of the L 2 norms of j and ω as well as the kinetic and magnetic energy.
Figure 3: Orszag-Tang Vortex with the pseudo-spectral integrator (left) and the varia- varia-tional integrator (right)
Figure 4: Orszag-Tang vortex with the pseudo-spectral integrator (left) and the variational integrator (right)
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