Models | Lock-in region | |||
Starting reduced velocity (m/s) | ending reduced velocity (m/s) | reduced velocity interval (m/s) | ||
Bare | 5.293 | 8.009 | 2.716 | |
Empty | 5.639 | 8.017 | 2.378 | |
0.8 D gap ratio | 0.5 D length | 5.710 | 7.775 | 2.065 |
1 D length | 6.058 | 7.435 | 1.377 | |
2 D length | 7.486 | 8.873 | 1.387 | |
0.5 D gap ratio | 0.5 D length | 6.418 | 8.144 | 1.726 |
1 D length | 8.138 | 9.518 | 1.380 | |
2 D length | 8.917 | 9.962 | 1.045 |