REVIEW ARTICLE


Aerodynamic Characteristics of Asymmetric Airfoils Blade Small Vertical Axis Wind Turbines



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


© 2014 Zhao and Liu

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the School of Mechanical Engineering, Northeast Dianli University, Jilin 132012, China; Tel: 043264807382; E-mail: zhaolh2020@126.com


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.