The Open Mechanical Engineering Journal

2014, 8 : 750-753
Published online 2014 December 31. DOI: 10.2174/1874155X01408010750
Publisher ID: TOMEJ-8-750

Aerodynamic Characteristics of Asymmetric Airfoils Blade Small Vertical Axis Wind Turbines

Li-Hua Zhao and Ming Liu
School of Mechanical Engineering, Northeast Dianli University, Jilin 132012, China.

ABSTRACT

In this paper, using sliding mesh model, the numerical simulation of small vertical axis wind turbine aerodynamic performance was studied with FLUENT software. Got change rule of four same thickness and different camber‘s NACA series asymmetrical airfoil moment coefficient of the wind turbine and wind power machine with the tip speed ratio. Wind turbine benchmark blade around the flow field was studied. Research shows that within a certain range, small vertical axis wind turbine aerodynamic performance be promoted if the airfoil relative thickness increases. In the case of large attack angle, the wind turbine blade is easy to be separated. It provides a theoretical reference for optimal design of a small vertical axis wind turbine.

Keywords:

Numerical simulation, vertical axis wind turbines, aerodynamic performance, sliding grid.