This article presents the results of an experimental wind tunnel study which investigates a
new control strategy named Helix. The Helix control employs individual pitch control for …

This work presents a high-fidelity shape optimization framework based on computational
fluid dynamics (CFD). The presented work is the first comprehensive curved tip shape study …

Unmanned aerial vehicle (UAV) wind measurement is a newly developed wind
measurement method that can improve the efficiency of conventional wind measurements. A …

Curved tip extensions are among the rotor innovation concepts that can contribute to the
higher performance and lower cost of horizontal axis wind turbines. One of the key drivers to …

In order to gain a more comprehensive understanding of the influence of winglets on the
hydrodynamic performance and flow field characteristics of tidal current energy turbines, two …

Winglets have been employed in the aviation industry to reduce vortices generated at
aircraft wings, decreasing drag, and hence increasing fuel economy. For rotating …

Tip vortex flow is crucial in designing and operating several engineering applications. In this
work, the effect of tip fins on vortex flow in non-cavitating and cavitating conditions is …

In this study, we propose an efficient turbine retrofit based on the use of bio-inspired winglets
to increase the power production of a wind turbine. To assess the capability of the modified …

A novel patented ducted winglet design is compared, using numerical simulations, to an
unmodified wing tip and a standard winglet in the context of a wind turbine blade. The aim of …

Tip vortices are observed downstream of the flow past the three-dimensional hydrofoils used
in propeller, wind and tidal turbines and they largely determine the forces exerted on such …