Levels | Average of efficiency/% | |||
VθRshroud/m2・s−1 | VθRhub/m2・s−1 | Kshroud | Khub | |
1 | 91.16 | 90.91 | 90.92 | 90.7 |
2 | 90.8 | 90.81 | 90.81 | 90.75 |
3 | 90.48 | 90.71 | 90.7 | 90.99 |
Range | 0.68 | 0.19 | 0.22 | 0.29 |