This paper presents two methods on how to estimate the lift force that is created by a wing. These methods were experimentally assessed in a wind tunnel. Furthermore, an active trailing edge flap, as seen on airplanes for example, is used to alleviate fluctuating loads that are created within the employed wind tunnel. Thereby, an active flow control device is examined that can be potentially serve on wind turbines to lower fatigue or lower the material used for the blades.

Floating offshore wind technology has high potential, but still faces challenges for gaining economic competitiveness to allow commercial market uptake. Hence, design optimization plays a key role, however, the final optimum floater obtained highly depends on the specified optimization problem. Thus, by considering alternative structural realization approaches, not that stringent limitations on the structure and dimensions are required. This way, more innovative floater designs can be captured.