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Table C.1
Error norms of the density field, and derived orders of accuracy for the combinations of dicretization schemes applied to the isentropic vortex problem as described in the text.
SLIP unlimited scheme | SLIP limited scheme (ν = 2) | ||||||
L2-norm | Error | Observed | L2-norm | Error | Observed | ||
Mesh | Δt | of error | ratio | order | of error | ratio | order |
|
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ESDIRK23 stepping | |||||||
16 × 16 | 4.00E-01 | 8.083686E-04 | – | – | 1.195121E-03 | – | – |
32 × 32 | 2.00E-01 | 1.829503E-04 | 4.419 | 2.14 | 5.355714E-04 | 2.231 | 1.16 |
64 × 64 | 1.00E-01 | 3.918942E-05 | 4.668 | 2.22 | 1.771569E-04 | 3.023 | 1.60 |
128 × 128 | 5.00E-02 | 8.995759E-06 | 4.356 | 2.12 | 3.806272E-05 | 4.654 | 2.22 |
256 × 256 | 2.50E-02 | 2.165725E-06 | 4.154 | 2.05 | 7.076837E-06 | 5.378 | 2.43 |
512 × 512 | 1.25E-02 | 5.327543E-07 | 4.065 | 2.02 | 1.433251E-06 | 4.938 | 2.30 |
|
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ESDIRK46 stepping | |||||||
16 × 16 | 4.00E-01 | 8.305988E-04 | – | – | 1.225907E-03 | – | – |
64 × 64 | 2.00E-01 | 3.909528E-05 | 21.246 | 4.41 | 1.826213E-04 | 6.713 | 2.75 |
256 × 256 | 1.00E-01 | 2.151586E-06 | 18.170 | 4.18 | 7.185873E-06 | 25.414 | 4.67 |
1024 × 1024 | 5.00E-02 | 1.315482E-07 | 16.356 | 4.03 | 2.940004E-07 | 24.442 | 4.61 |
Notes. In case of the ESDIRK46-based schemes, the listed order refers solely to the temporal discretization.
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