Table 1.
Comparison of the quantities indicating the accuracy of the WSR, OWF, COS, and COV models for 4000 iteration steps in the physical box using the artificial magnetogram.
| L/L0 | Ld/Ld0 | Lf/Lf0 |
 |
σJ | EF/EP | ϵ | NVE | VC | CS | ⟨ ∣ fi ∣ ⟩ | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ( × 10−3) | ( × 10−2) | ( × 10−3) | ( × 10−1) | ( × 10−1) | ( × 10−1) | ( × 10−1) | ( × 10−1) | ( × 10−4) | |||
| L&L | – | – | – | 0.68 | 0.012 | 1.462 | 10 | 0 | 10 | 10 | 0 |
| nd = 0: | |||||||||||
| WSR | 3.09 | 1.51 | 2.53 | 7.93 | 1.38 | 1.402 | 9.59 | 2.65 | 9.91 | 8.76 | 1.9 |
| COS | 3.19 | 2.40 | 2.21 | 6.43 | 1.12 | 1.411 | 9.65 | 2.44 | 9.93 | 8.87 | 3.0 |
| COV | 3.17 | 1.53 | 2.60 | 7.90 | 1.37 | 1.410 | 9.51 | 2.77 | 9.90 | 8.73 | 2.21 |
| nd = 8: | |||||||||||
| OWF | 0.36 | 0.19 | 0.26 | 3.28 | 0.57 | 1.459 | 9.93 | 2.16 | 9.96 | 9.17 | 2.8 |
| COS | 0.42 | 0.32 | 0.22 | 3.24 | 0.57 | 1.441 | 9.86 | 2.18 | 9.96 | 9.29 | 4.4 |
| COV | 0.38 | 0.21 | 0.26 | 3.25 | 0.57 | 1.445 | 9.92 | 1.83 | 9.96 | 9.20 | 3.28 |
Notes. The lateral and top sides of boundary values for the L & L test case are used from the potential field. Therefore, we do not expect exact agreement between the extrapolation and the semi-analytic solution.
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