Table 1.
A dimensional parameters at the current peak t* (in turnover time units).
| Run | Re = Rem |  |
 |
Ma | t* | ξ |
|---|---|---|---|---|---|---|
| I | ∼1500 | 8.5 × 10−4 | ∼0.5 | 0.005 | 79.5 | 2.4 |
| II | ∼900 | 2.7 × 10−3 | ∼1.0 | 0.005 | 51.9 | 1.7 |
| III | ∼800 | 2.5 × 10−3 | ∼2.0 | 0.001 | 45.3 | 1.8 |
Notes. Re and Rem are, respectively, the Reynolds and magnetic Reynolds numbers; Ma is the Mach number; 
is the ratio between the rms velocity and magnetic fluctuations at the initial time of the simulation (t = 0); ξ is the fitted exponent (see Fig. 6). The box size, (2π)3, and the magnetic Prandtl number, Prm = 1, are the same for all runs.
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