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Table 1.

Physical parameters of the various simulation runs.

Number of grid points Ra Ra* = Ra Pr Pr Time step [τdiff] Number of time steps used
for Fourier analysis
960 × 160 2 × 106 2 × 106 1 4.0 × 10−5 7501
3000 × 500 2 × 107 2 × 106 0.1 4.0 × 10−5 7501
3072 × 512 8 × 106 2 × 105 0.025 1.6 × 10−4 1875
4500 × 750 2 × 107 2 × 105 0.01 1.6 × 10−4 1875

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