Table 1 Dynamo models control parameters: Rayleigh Ra, Ekman E, and magnetic Prandtl Pm
Model | Ra | E | Pm | Rm | \(\bar {\delta \tau }\) |
|---|---|---|---|---|---|
1 | 2×105 | 1×10−3 | 5 | 137 | 14.75 |
2 | 2×105 | 1×10−3 | 10 | 255 | 11.9 |
3 | 4×105 | 1×10−3 | 5 | 219 | 33.07 |
4 | 5×105 | 3×10−4 | 3 | 82 | 22.51 |
5 | 1×106 | 3×10−4 | 3 | 125 | 14.60 |
6 | 3×106 | 3×10−4 | 3 | 234 | 78.98 |
7 | 1×107 | 1×10−4 | 1.3 | 126 | 9.42 |
8 | 1×107 | 1×10−4 | 2 | 218 | 5.50 |
9 | 3×107 | 1×10−4 | 2 | 446 | 16.66 |