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Fig. 13.

image

Logarithmic rest-frame density (left panel) and MRI quality factor (right panel) for simulation MKS192-UCT, showing the AMR blocks of Nr × Nθ × Nϕ = 32 × 8 × 8 cells each. The grid is able to concentrate resolution in the disk in order to achieve in the torus, as recommended in Sano et al. (2004), while saving computational costs by de-refining the polar regions.

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