Table 6:
Comparison of the extrapolated number of simulations to obtain nCI[Q] = 0.01 for different UQ methods. The distribution of number of simulations by model level and fidelity is shown as a percentage of the total number of simulations needed for extrapolation. The total number of simulations is shown on the final row for the healthy and diseased models. The same representative QoI is used for both healthy and diseased models. Values marked as 0.0% contribute negligibly to the overall percentage of simulations.
| Outlet Flow | Model TAWSS | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| MC | MLMC | MLMF | MLMF | MC | MLMC | MLMF | MLMF | ||
| 3D-1D | 3D-1D-0D | 3D-1D | 3D-1D-0D | ||||||
| Healthy | LF Coa. | — | — | 96.6% | 98.9% | — | — | 77.9% | 94.7% |
| LF Med. | — | — | 1.7% | 0.9% | — | — | 10.8% | 4.1% | |
| LF Fine | — | — | 1.4% | 0.2% | — | — | 10.1% | 1.1% | |
| HF Coa. | — | 98.1% | 0.2% | 0.0% | — | 84.4% | 1.1% | 0.0% | |
| HF Med. | — | 1.1% | 0.0% | 0.0% | — | 8.2% | 0.0% | 0.0% | |
| HF Fine | 100% | 0.8% | 0.0% | 0.0% | 100% | 7.4% | 0.1% | 0.0% | |
| Total No. Sims. | 9 758 | 10 386 | 133 843 | 883 690 | 23 940 | 25 469 | 543 309 | 3 060 780 | |
| Diseased | LF Coa. | — | — | 92.2% | 97.1% | — | — | 78.6% | 94.0% |
| LF Med. | — | — | 5.3% | 2.4% | — | — | 14.1% | 5.3% | |
| LF Fine | — | — | 2.3% | 0.4% | — | — | 5.6% | 0.7% | |
| HF Coa. | — | 89.9% | 0.1% | 0.0% | — | 84.3% | 1.4% | 0.0% | |
| HF Med. | — | 6.7% | 0.1% | 0.0% | — | 10.3% | 0.1% | 0.0% | |
| HF Fine | 100% | 3.4% | 0.1% | 0.0% | 100% | 5.4% | 0.1% | 0.0% | |
| Total No. Sims. | 9 471 | 18 626 | 363 442 | 2 240 202 | 22 581 | 27 537 | 673 023 | 3 407 848 | |
| (a) Aorto-Femoral Model | |||||||||
| Outlet Pressure | Model TAWSS | ||||||||
| MC | MLMC | MLMF | MLMF | MC | MLMC | MLMF | MLMF | ||
| 3D-1D | 3D-1D-0D | 3D-1D | 3D-1D-0D | ||||||
| Healthy | LF Coa. | — | — | 96.4% | 98.4% | — | — | 82.4% | 98.6% |
| LF Med. | — | — | 2.0% | 0.9% | — | — | 11.6% | 0.9% | |
| LF Fine | — | — | 1.4% | 0.7% | — | — | 4.6% | 0.4% | |
| HF Coa. | — | 99.6% | 0.1% | 0.0% | — | 91.6% | 1.3% | 0.0% | |
| HF Med. | — | 0.3% | 0.0% | 0.0% | — | 6.3% | 0.1% | 0.0% | |
| HF Fine | 100% | 0.1% | 0.0% | 0.0% | 100% | 2.1% | 0.0% | 0.0% | |
| Total No. Sims. | 20 467 | 24 799 | 197 712 | 653 682 | 21 748 | 27 298 | 932 759 | 3 717 084 | |
| Diseased | LF Coa. | — | — | 96.7% | 98.5% | — | — | 91.2% | 99.0% |
| LF Med. | — | — | 1.3% | 0.6% | — | — | 3.5% | 0.4% | |
| LF Fine | — | — | 1.9% | 0.9% | — | — | 4.0% | 0.6% | |
| HF Coa. | — | 99.6% | 0.1% | 0.0% | — | 94.0% | 1.2% | 1.2% | |
| HF Med. | — | 0.3% | 0.0% | 0.0% | — | 2.8% | 0.0% | 0.0% | |
| HF Fine | 100% | 0.1% | 0.0% | 0.0% | 100% | 3.2% | 0.0% | 0.0% | |
| Total No. Sims. | 20 587 | 24 188 | 214 491 | 563 280 | 16 391 | 16 615 | 699 517 | 2 894 913 | |
| (b) Coronary Model | |||||||||