Author:
Karbasian H. R.,Moshizi S. A.,Maghrebi M. J.
Abstract
AbstractIn this paper, the dynamic stall of S809 airfoil that widely used in horizontal axis wind turbine, in different reduced frequencies is investigated. The simulation was carried out numerically handling Navier-Stokes equations. For this purpose, the segregated solver with SIMPLE algorithm was chosen to solve the momentum equations. The effect of turbulence on the flow field is taken into account using Shear Stress Transport (SST) K-ω turbulence model. The obtained numerical results are compared with experimental and a few numerical results. The results indicate that the K-ω SST model is in good agreement with experimental results for both steady and unsteady conditions. Furthermore, a non-dimensional parameter, relating the acceleration of unsteady free stream velocity and acceleration of pitch motion (known as reduced frequency), is also investigated. In addition, the results show that any increase in the reduced frequency increases the instantaneous aerodynamic characteristics of oscillating airfoil.
Publisher
Oxford University Press (OUP)
Subject
Applied Mathematics,Mechanical Engineering,Condensed Matter Physics
Reference18 articles.
1. On the S809 airfoil's unsteady aerodynamic characteristics
2. Unsteady Modelling of the Oscillating S809 Aerofoil and NREL Phase VI Parked Blade Using the Beddoes-Leishman Dynamic Stall Model;Gonzalez;Journal of Physics: Conference Series,2007
3. Dynamic stall experiments on the NACA 23012 aerofoil
4. Effect of Acceleration on Dynamic Stall of Airfoil in Unsteady Operating Conditions;Karbasian;Wind Energy,2014
Cited by
12 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献