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Table 2

Summary of DNS at varying , and fixed values of , PrM = 0.5, Re ≈ 38, Ma ≈ 0.1, ĝ = 1, , τtd/τto ≈ 2700, using 2563 mesh points.

Run Re ReM Ma

(a) 0.0005 39 19 0.12 1.81 0.36 0.13 3.1
(b) 0.0010 39 19 0.12 2.68 1.00 0.11 1.8
(c) 0.0020 38 19 0.11 2.45 0.87 0.17 1.4
(d) 0.0050 37 18 0.11 3.47 1.25 0.22 −0.5
(e) 0.0100 35 18 0.11 3.95 1.49 0.29 −1.2
(f) 0.0200 31 16 0.09 4.21 1.26 0.45 π

Notes. In all cases the number of resulting spots is unity. The positions agree with those marked in Fig. 13.

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