Numerical investigation of vertical axis c-shaped Savonius wind turbine

Abstract

In recent decades, the use of wind turbines has been successfully increasing in power generation. Various types of wind turbine configurations as well as possible blade geometries are been proposed and are still under development for extracting the maximum possible energy extraction. Vertical axis wind turbine (VAWT) found to have enhanced adaptable physiognomies to the unsteady wind of urban terrains. These turbines can yield electricity from the wind of any direction with low-slung cut-in wind speed. These turbines are ominously quieter than the old-fashioned HAWTs, light-weight, and can be straightforwardly unified into buildings. Hence, the main idea of the present work to numerically evaluate the design performance of a C-shaped Savonius turbine for wind-energy conversion thus obtaining a higher output. During computational fluid dynamic (CFD) simulations, 3 different symmetric and non-symmetric airfoils are examined. After authenticating the numerical procedure against experimental measurements, precise CFD simulations of the unsteady flow around an H-rotor Darrieus turbine have been carried out and presented here. Based on the various configuration of the H-rotor Darrieus turbine tested the DU-06-W-200 found to be capable of wind energy generation, particularly in urban areas.