Open Access
Table 1
Actual blowing conditions and experimental ranges.
| Parameter | Actual blowing conditions of human |
Experimental ranges for device | |
|---|---|---|---|
| Value | Variation | ||
| Jet angle θ j (°) | 39 | ±2 | 35–90 |
| Lip-to-edge distance l/h | 5.6 | ±0.42 | 5.0–9.17 |
| Jet offset y j,e/h | 0.24 | ±0.25 | −0.83–1.5 |
| Flow rate Q (L/min) | 16.0 | ±2 | 2.0–38.0 |
| Cavity exit height h (mm) | 1.2 | ±0.1 | 1.2 |
| Cross-sectional mean jet velocity at cavity exit U 0 (= Q/S 0) (m/s) | 21.5 | ±2.7 | 2.69–51.1 |
S 0 (m2): Cavity exit area.
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