Table 1.
Comparison between measured and CFD simulated peak pressure gradient and peak velocity at the orifice for two orifice shapes (circular and rectangular) and for two flow conditions.
| Peak Δp | Peak Velocity | |||||
|---|---|---|---|---|---|---|
| Measured (mmHg) | CFD Simulated (mmHg) | % Difference | Measured (cm/s) | CFD Simulated (cm/s) | % Difference | |
| Circular Orifice | ||||||
| 30 ml | 40 | 43.8 | 9.5 | 317 | 332 | 4.7 |
| 70 ml | 129 | 123 | 4.6 | 567 | 539 | 4.9 |
| Rectangular Orifice | ||||||
| 30 ml | 52 | 43.8 | 15.7 | 359 | 332 | 7.5 |
| 70 ml | 140 | 128 | 8.6 | 591 | 562 | 4.9 |
| Combined Mean | 90 | 85 | 10.4 | 459 | 442 | 5.7 |