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Sources and quantification of numerical uncertainty.
| Uncertainty source | Evaluation method | Key quantity | Uncertainty (%) | Remarks |
|---|---|---|---|---|
| Grid resolution | Grid independence (6 levels) | Tout | 1.11 | 2.1 million |
| Time step size | Time step size (3 levels) | Tw | 0.89 | 0.08-0.007.08.007.08.007.08.007 s |
| Numerical scheme | 2nd-order vs 1 st order upwind | Nuav | 1.72 | 1 st order |
| Property interpolation | Polynomial vs linear and constant | Nuav | 1.25 | Polynomial |
