Table 2.
CFD Predictions for the Capsule Force, Capsule Flow Rate, and Maximum Impact Velocity for the HandiHaler, Cyclohaler, Mod 1, and Mod 2
| HandiHaler | Cyclohaler | Mod 1 | Mod 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow rate (l/min) | F c (mN) | Q c (l/min) | V n (m/s) | F c (mN) | Q c (l/min) | V n (m/s) | F c (mN) | Q c (l/min) | V n (m/s) | F c (mN) | Q c (l/min) | V n (m/s) |
| 20 | 0.04 | 0.5 | 4.5 | 0.5 | 0.3 | 3.3 | 1.3 | 1.2 | 8.9 | 3.2 | 0.9 | 5.2 |
| 39 | 18.9 | 1.3 | 8.4 | 2.3 | 0.5 | 6.8 | 4.7 | 2.3 | 16.2 | 11.3 | 1.6 | 8.6 |
| 55 | 50.0 | 2.0 | 13.1 | 4.8 | 0.7 | 9.5 | 9.8 | 3.2 | 22.0 | 21.5 | 2.1 | 11.6 |
F c capsule force, Q c capsule flow rate, V n maximum impact velocity