Table 4 Performance parameters at 97% blade span and 1.7% tip clearance for different cases.
Case study | Efficiency | Total pressure loss coeff | Incidence (deg) | Loading factor |
|---|---|---|---|---|
Plane (no treatment) | 81.02% | 3.06% | \(2.9\) | 0.54 |
Initial aspiration slot | 82.30% | 1.90% | \(2.5\) | 0.52 |
Optimized aspiration slot | 84.5% (2.6%) | 1.46% (− 14%) | \(2.4\)(− 3.4%) | 0.51 (− 1.8%) |
