Numerical Simulation for the Aerodynamics of Vertical Axis Wind Turbine with Two Different Rotors Having Movable Vanes

Abstract

Wind energy has seen a rapid growth worldwide. Wind turbines are typical devices that convert the kinetic energy of wind into electricity. Researches in the past have proved that Vertical Axis Wind Turbines (VAWTs) are more suitable for urban areas than Horizontal Axis Wind Turbines (HAWTs). In the present design of the VAWT, the power prodused depends on the drag force generated by the individual blades and interactions between them in a rotating configuration. Numerical simulation for the aerodynamics of VAWT with tow different rotors (Three and Foure blades ) having movable vanes are curred out. The For numerical simulation, commercially available computational fluid dynamic (CFD) softwares GAMBIT and FLUENT are used. In this work the Shear Stress Transport (SST) k-ω turbulence model was used which is better than the other turbulence models available as suggested by some researchers. The predicted results show agreement with those reported in the literature for VAWT having different blades designs.

A review of available hybrid renewable energy systems in Malaysia

“…This is then followed by Chuping, which produces 254 MWh annually. Meanwhile, wind electricity in Melaka is accounted to 29 MW h per annum [27,28].…”

“…Wong et al performed a review on VAWT efficiency advancements using flow augmentation method [34]. Suffer et al and Kadhim et al modelled and performed numerical simulation for four cavity blades and aerodynamic VAWT respectively [27,28]. Loon et al and Aravind et al conducted analysis on the concept of magnetic levitation on VAWT [35].…”