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Table 2

Comparison of compressible and incompressible simulations.

Pr Le Rρ Ra

10-1 10-2 2.0 1.6 × 105 60 8 55 7
10-1 10-2 1.2 1.6 × 105 110 12 110 11
10-1 10-2 2.0 1.6 × 106 150 12 130 10
10-1 10-2 1.2 1.6 × 106 200 16 200 14
1.0 10-1 2.0 1.6 × 105 3.5 2 11 1.5
1.0 10-1 1.2 1.6 × 105 45 15 17 5
1.0 10-1 2.0 1.6 × 106 4 3.5 26 10
1.0 10-1 1.2 1.6 × 106 33 11 26 10

Notes.Thermal (T) and solute (S) Nusselt numbers from the Boussinesq (B) and compressible (s) results. Layer thickness d is 0.1 pressure scale height.

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