Applying suction

Applying suction, through “Slot1” at 0.09 Cq, influenced the size and the location of the vortex, moving it closer to the floor and the wing as it reduced in size (fig. 2.5b). As the suction rate was increased to 1.0 Cq, the maximum suction applied, these effects were magnified, since the separation in the symmetry plane was significantly reduced although not completely eliminated. Applying a lower suction of 0.09 through “Slot2” was significantly more effective than the higher suction through “Slot1” (fig. 2.5d). These results suggested a preferred position for the suction slot between the wing and the separation point. It was concluded that further the slot was from the wing’s leading edge, the higher the suction rate needed.