抄録
The lift and drag characteristics of specially designed complex airfoil are investigated by surface pressure and wake velocity measurements in a smoke tunnel. To understand the characteristics obtained, flow mechanism induced by this complex airfoil was investigated in the same tunnel by flow visualization technique using the smoke-line, tuft and oil flow methods. Both airfoil characteristic study and flow visualization were carried out under the same following conditions; Reynolds Number Re=3.3 × 105, angle of attack α=-615 degrees.
