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International Journal of Renewable, Green, and Sustainable Energy

Open Access Peer Review International
Open Access

EXPERIMENTAL AERODYNAMIC CHARACTERIZATION OF STRAIGHT-BLADED VERTICAL AXIS WIND TURBINES IN A CONTROLLED WIND ENVIRONMENT

DOI https://doi.org/10.55640/ijrgse-v02i02-02
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Dr. Clara Dumont 1 ,
4 Laboratory of Wind Energy and Atmospheric Flows, École Polytechnique FĂ©dĂ©rale de Lausanne , Lausanne, Switzerland

Abstract

This study presents an experimental aerodynamic characterization of straight-bladed vertical axis wind turbines (VAWTs) under controlled wind tunnel conditions. The investigation focuses on understanding the performance behavior and flow dynamics around the turbine blades at various tip speed ratios and wind velocities. High-precision instruments were used to measure torque, rotational speed, and pressure distribution, while flow visualization techniques provided insights into wake formation and blade-vortex interaction. The results indicate that the aerodynamic performance of straight-bladed VAWTs is significantly influenced by dynamic stall and blade angle orientation. These findings offer valuable data for optimizing blade design and improving the efficiency of VAWTs in urban and distributed energy applications.

Keywords

Vertical axis wind turbine (VAWT), straight-bladed turbine, aerodynamic characterization

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