Table 7. Cl, Cd and L/D for VG airfoil and spherical TLE airfoil with A 0.025c and W 0.25c.
| Airfoil | AoA | Cl | % decrease in lift | Cd | % increase in drag | L/D | % decrease in L/D ratio |
|---|---|---|---|---|---|---|---|
| Spherical A 0.025c and W 0.25c | 0 | 0.45 | 0.0370 | 12.177 | |||
| Airfoil+ VG | 0 | 0.415 | 8.026 | 0.0233 | 37.050 | 17.8 | -46.106 |
| Spherical A 0.025c and W 0.25c | 6 | 0.938 | 0.0439 | 21.331 | |||
| Airfoil +VG | 6 | 1.01 | -7.324 | 0.043 | 2.337 | 23.441 | -9.893 |
| Spherical A 0.025c and W 0.25c | 12 | 1.176 | 0.070 | 16.587 | |||
| Airfoil + VG | 12 | 1.48 | -25.733 | 0.0906 | -27.734 | 16.327 | 1.566 |
| Spherical A 0.025c and W 0.25c | 18 | 1.186 | 0.162 | 7.307 | |||
| Airfoil +VG | 18 | 1.53 | -28.886 | 0.203 | -24.794 | 7.547 | -3.279 |