Table 1
Parameters for two-dimensional hydrodynamic simulations of the young sun.
| Inner radius (R) | Outer radius (R) | ro,top (R) | wo (% R) | τconv(106 s) | Time span (τconv) | Grid type | |||||||||||||||||||||
|
|
|||||||||||||||||||||||||||
| Low1 | 0.41 (small) | 0.91 | 0.50 | 9.4 | 3.21 ± 2.10 | 358 | uniform | ||||||||||||||||||||
| Low2 | 0.31 (small) | 0.91 | 0.44 | 3.7 | 1.52 ± 0.47 | 465 | uniform | ||||||||||||||||||||
| Low3 | 0.21 (medium) | 0.94 | 0.45 | 4.0 | 1.40 ± 0.34 | 686 | uniform | ||||||||||||||||||||
| Low4 | 0.10 (large) | 0.97 | 0.45 | 2.9 | 2.66 ± 0.75 | 338 | uniform | ||||||||||||||||||||
| Low5 | 0.21 (medium) | 0.97 | 0.45 | 3.4 | 2.07 ± 0.32 | 330 | uniform | ||||||||||||||||||||
| Low6 | 0.10 (large) | 0.94 | 0.45 | 4.2 | 1.61 ± 0.66 | 473 | uniform | ||||||||||||||||||||
| Low7 | 0.47 (none) | 1.00 | − | − | 1.29 ± 0.40 | 432 | uniform | ||||||||||||||||||||
| Low8 | 0.21 (medium) | 1.00 | 0.44 | 2.6 | 1.88 ± 0.16 | 68 | uniform | ||||||||||||||||||||
| Low9 | 0.21 (medium) | 1.00 | 0.47 | 7.7 | 0.88 ± 0.20 | 69 | spliced | ||||||||||||||||||||
| Hi1 | 0.24 (medium) | 0.94 | 0.52 | 13.5 | 1.17 ± 0.12 | 157 | uniform | ||||||||||||||||||||
| Hi2 | 0.10 (large) | 0.97 | 0.53 | 16.6 | 1.20 ± 0.15 | 85 | uniform | ||||||||||||||||||||
| Hi3 | 0.21 (medium) | 0.97 | 0.51 | 11.3 | 1.08 ± 0.22 | 163 | uniform | ||||||||||||||||||||
| Hi4 | 0.21 (medium) | 1.00 | 0.58 | 14.7 | 0.91 ± 0.23 | 49 | uniform | ||||||||||||||||||||
| Hi5 | 0.21 (medium) | 1.00 | 0.54 | 13.1 | 0.72 ± 0.07 | 59 | spliced | ||||||||||||||||||||
| ExH2 | 0.10 (large) | 0.97 | 0.56 | 15.1 | 0.91 ± 0.07 | 18 | uniform | ||||||||||||||||||||
Notes. The inner and outer radius of the spherical shell are given in units of the total radius of the young sun R. The amount of the radiative zone included is categorized in terms of a small, medium, or large amount, or none. Diagnostic results are summarized, including the outer radius ro,top of the overshooting layer, the width of the overshooting layer wo, and the convective turnover time τconv. The total time span and the type of grid used for each simulation is also indicated. The type of grid is linked to the type of boundary condition at the surface.
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