Abbas Ebrahimi

TL;DR: In this article, the effects of a wing's twisting stiffness on the generated thrust force and the power required at different flapping frequencies were investigated using an experimental set-up to measure the unsteady aerodynamic and inertial forces.

TL;DR: In this article, the aerodynamic performance of a flexible membrane flapping wing was investigated in a large low-speed wind tunnel and the lift and thrust of this mechanism were measured for different flapping frequencies, angles of attack and for various wind tunnel velocities.

TL;DR: In this paper, the authors investigated flow separation control over an airfoil using dual excitation of DBD plasma actuators as a novel approach, where the wake mode frequency (i.e., the frequency of natural vortex shedding) was used to excite separated shear layers at both the upper surface and the trailing edge, simultaneously.

TL;DR: In this article, the feasibility of using multiple dielectric barrier discharge (multi-DBD) plasma actuators as a novel approach for active flow control over a large horizontal axis wind turbine rotor was numerically investigated.

TL;DR: In this article, the effect of the presence and/or lack of blade pitch control system on output power, rotor thrust, and blade deformation in sudden change of wind speed is investigated.