Topic
Savonius wind turbine
About: Savonius wind turbine is a research topic. Over the lifetime, 333 publications have been published within this topic receiving 6521 citations.
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03 Dec 2018
3 citations
TL;DR: In order to improve the performance coefficients of the classic Savonius rotor, a newly-designed blade was proposed and numerically analyzed via CFD tools through a comprehensive-validation procedure.
Abstract: In order to improve the performance coefficients of the classic Savonius rotor, a newly-designed blade was proposed and numerically analyzed via CFD tools. For this purpose, a comprehensive-validat...
3 citations
21 Apr 2019
TL;DR: In this paper, a three dimensional Savonius S wind turbine is simulated using unsteady Reynolds Averaged Navier Stokes (RANS) model, where inlet velocity and wind turbine inertia are used as input data.
Abstract: Previous numerical studies in the Savonius wind turbine mostly used constant angular velocity as input data, where the values were obtained from experiments. This process cannot be used in the design optimization of the turbine, in which the angular velocity of the modified turbine is not known a priority. In numerical simulation, the use of loading system to get constant angular velocity to control the tip speed ratio (TSR), tends to have fluctuating value on output data. Moreover, the values of angular velocity shall be the results from freestream flow and Savonius rotor interaction. This condition can be simulated by using fluid structure interaction (FSI) method. Three dimensional Savonius S wind turbine is simulated using unsteady Reynolds Averaged Navier Stokes (RANS). Inlet velocity and wind turbine inertia are used as input data. The flow is assumed to be incompressible, viscous, and uniform at the inlet. The turbulence model used is the Eddy Viscosity k-ω SST, with y+ < 1. The domain consists of a sliding mesh, which rotates in the overset mesh region. Simulation results Power Coefficient (CP) and angular velocity and compared with experimental result. This study is resulted a standard method for the Savonius wind turbine numerical study
3 citations
01 Oct 2019
3 citations
01 Dec 2019
TL;DR: In this paper, a 3D model of the Savonius wind turbine was used to analyze the power coefficient of the wind turbine and the simulation results showed that the wind speed on the airfield was set to 5m/s with the angular velocity 5 m/s.
Abstract: This paper aims to study the power coefficient of the Savonius wind turbine using Computational Fluid Dynamics (CFD) analysis. Power coefficient is one of the parameter of a wind turbine, to define the ratio between the actual wind power and the extracted power from rotor. 3D model of the Savonius wind turbine is required to analyze the power coefficient. The 3D model contains the height and diameter of the rotor. The height of the rotor in this research is 600mm and 580mm for the diameter. In this research, CFD is used to analyzed the behavior of Savonius wind turbine under the airfield conditions and to determine power coefficient of the wind turbine. The wind speed on the airfield was set to 5m/s with the angular velocity 5m/s. Power coefficient value of the simulation is 0.301 and from the theoretical calculation is 0.268. Comparison result of the power coefficient between simulation and theoretical calculation has error value 0.123%.
3 citations