Abstract
Numerical simulation was achieved to study the aerodynamic characteristics around horizontal axis wind turbine of Rutland 913 type. Our study has been focus on the wedging angle effect. From application of the commercial computational fluid dynamics code Fluent, the distribution of the velocity fields and static pressure was presented in different planes of the considered control volume. These results present the local characteristics of the turbulent flow and give us informations about the wind turbine performance. Indeed, the geometrical parameters have been compared to choose the optimal conditions of the wind turbine.
Highlights
Wind energy is the fastest growing source of energy
The distribution of the velocity fields and the static pressure was presented in different planes of the considered control volume to study the wedging angle effect of the Rutland 913 wind turbine
It has been noted that the wedging angle has a direct effect on the recirculation zones shape which are less developed with β=5°
Summary
Wind energy is the fastest growing source of energy. Subsidy programs were required, to stimulate the installation of such a large wind energy capacity. Hu [1] developed an experimental investigation on the properties of the near wake behind the rotor of a horizontal-axis wind turbine at model scale. The behavior of the vorticity trailing from the turbine blade tips and the effect of was interference on wake development were considered. Laser sheet visualisation (LSV) techniques were used to measure the trajectories of the trailing vorticity under various conditions of turbine yaw and blade azimuth. Barnsley and Wellicome [3] made surface pressure and near rotor velocity measurements, using a laser Doppler facility, at six radial positions for a 1 m diameter two-bladed rotor, over the stalling range of tip speed ratios at typical Reynolds' numbers of 300000. Uses wind force to drive refrigeration system and reduces two times energy conversions between mechanical and electrical
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