Due to their potential to beat the Betz–Joukowsky limit for power extraction, diffuser-
augmented wind-turbines have experienced a great research interest, especially in the last …

Light-driven actuators have great potential in different types of applications. However, it is
still challenging to apply them in flying devices owing to their slow response, small deflection …

Wind energy is a significant contributor to global renewable energy production. Therefore, it
is crucial to create novel wind-capturing equipment that can produce power in sites where …

This paper aims to enhance the performance of H-Darrieus Vertical Axis Wind Turbine
(VAWT) via introducing upstream deflectors. The impact of this addition has been …

Diffuser-augmented wind-turbines are drawing increasing attention since they can beat the
Betz-limit referred to the rotor-area. However, their diffusion is still prevented by some issues …

Placing a diffuser around a wind turbine can increase its power output, but not all
mechanisms by which the diffuser alters the aerodynamics have been investigated …

Hydrokinetic energy conversion devices provide the facility to capture energy from water
flow without the need of large dams, impoundments, channels or deviation of the water as in …

The hydrokinetic turbine is used worldwide for electrical generation purposes, as such a
technology may strongly reduce environmental impact. Turbines designed using backward …

Diffuser technology placed around hydrokinetic rotors may improve the conversion of the
fluid's kinetic energy into shaft power. However, rotor blades are susceptible to the …

Lifting line analyses of propellers and horizontal-axis turbines require the axial and
circumferential velocities induced by the helicoidal vorticity shed from the blades. These …