Effect of Plunging Oscillation on an Offshore Wind Turbine Blade Section

A series of experiments were carried out to study unsteady behavior of the flow field as well as the boundary layer of an airfoil oscillating in plunging motion in a subsonic wind tunnel. The measurements involved surface pressure distribution complimented with surface-mounted hot-films. The effect of leadingedge roughness that simulates surface irregularities on the wind turbine blades was also studied on variations of aerodynamic loads and boundary layer behavior.

Authors:

• F. Rasi Marzabadi

Keywords:

• Boundary layer transition
• plunging
• reduced frequency
• wind turbine.

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