Development of low-speed wind energy harvesting device

Since the energy demand increases, the sources of fluid energy such as wind energy and marine energy have attracted attention, especially vortex-induced vibrations (VIV) excited by wind energy. This paper proposes a wind energy device-based VIV concept. The proposed device converts the mechanical energy of the oscillator into electrical . Different design shapes, that motivates disturbance in airflow, were proposed and tested. The proposed designs were and experimentally tested to gauge their performance and efficiency in generating power. The detailed design analysis for VIV including computational fluid dynamics (CFD) simulation were carried out. The CFD simulations were on the elastic rod (mast), which represents the critical component of the proposed model. Wind tunnel was used to the experimental work. Piezoelectric sensors were utilized to measure and monitor extracted power. The best location the piezoelectric sensors on the mast was investigated and located. The results of the simulations are reported in this paper. each simulated case, lift coefficient, velocity, pressure, and vorticity contours are presented. It was also concluded that complexity to the geometry of the cylindrical proposed design would increase the lift force, and therefore, increasing power. Promising numerical and experimental results were obtained, and power generation was maximized.