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Table 2

Numerical simulation computation times.

Case τ(LareJ) τ(HYDRAD) τ(Lare1D(8000)) τ(HYDRAD) / τ(Lare1D(8000)) /
(min) (min) (min) τ(LareJ) τ(LareJ)

1 17 316 7426 18.6 436.8
2 19 340 7766 17.9 408.7
3 51 1943 13 886 38.1 272.3
4 22 370 6341 16.8 288.2
5 82 2617 8594* 31.9 106.0
6 154 5177 12 732* 33.6 82.7
7 26 1559 18 893 60.0 726.7
8 28 1566 18 059 56.0 645.0
9 35 1605 16 833 45.9 480.9
10 26 1805 11 138 69.4 428.4
11 32 1914 11 997 59.8 374.9
12 86 2269 12 973* 26.4 150.8

Notes. The columns show the computation times (run on a single processor) using the Lare1D code with 500 grid points (coarse resolution) employed with the jump condition (LareJ), the HYDRAD code (in single fluid mode) with the largest grid cell of width 400 km and 12 levels of refinement employed, the Lare1D code using 8000 grid points along the length of the loop (Lare1D(8000)), and the computational time ratios between these methods. The short loop simulations (Cases 16) are run to a final time of 4000 s and the long loop simulations (Cases 712) are run to a final time of 12 000 s. The asterisks indicate cases where the Lare1D code using 8000 grid points was unable to resolve the density to within 75% of the HYDRAD solution.

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