Table 1
Summary of runs discussed in this paper.
| Run | Af | Rm | Pm |
|
τ ωcyc | Δt/τ | Vej/urms | ||||
|
|
|||||||||||
| A | 0.20 | 1.5 | 1 | 1.2–2.7 | 0.032 | 100 | 0.482 | ||||
| B | 0.20 | 5 | 1 | 1.5–3.5 | 0.029 | 110 | 0.409 | ||||
| C | 0.20 | 9 | 1 | 2.1–5.5 | 0.022 | 130 | 0.455 | ||||
| D | 0.20 | 18 | 1 | 2.0–5.0 | 0.019 | 140 | 0.409 | ||||
| D1 | 0.10 | 11 | 1 | 2.0–5.0 | 0.018 | 140 | 0.455 | ||||
| D2 | 0.15 | 15 | 1 | 2.0–5.0 | 0.016 | 130 | 0.482 | ||||
| D3 | 0.25 | 20 | 1 | 1.0–3.0 | 0.023 | 130 | 0.293 | ||||
| E | 0.20 | 22 | 1 | 1.5–4.5 | 0.017 | 220 | 0.205 | ||||
| F | 0.20 | 28 | 1 | 1.2–4.2 | 0.015 | 280 | 0.273 | ||||
| G | 0.20 | 44 | 1 | 1.7–3.5 | 0.015 | 285 | 0.409 | ||||
Notes. Af is the forcing amplitude defined in Eq. (3), Rm is the magnetic Reynolds number defined in Eq. (8) and Pm = ν/η is the magnetic Prandtl number. ωcyc = 2π/Tcyc stands for the frequency of the oscillating dynamo, where Tcyc is the cycle period. Δt/τ is the typical interval of plasmoid ejections, whose typical speed is Vej. For the runs D1 to D3, the forcing amplitude Af is changed, while η and ν have the same value as for run D. The rms velocities in the turbulence zone change accordingly and affect therefore the Reynolds number and the turnover times τ.
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