Abstract
In this study, a combination of CFD (Computational Fluid Dynamics) and BEM (Blade Element Momentum Method) methods are used to simulate the flow field around a wind turbine rotor with horizontal axis. The main objectives are to predict the aerodynamic performances such as forces and torque imposed on the rotor blades which are essential to its structure or design. This approach requires much less computing time and memory than three-dimensional simulation flow around the wind turbine rotor with simple CFD method. The flow is assumed unsteady, incompressible and fully turbulent. This work consists of two parts: -The Calculation of aerodynamic coefficients by the CFD method, using Ansys / Fluent software. -The Simulation of 3D flow field through the rotor of the wind turbine using the BEM method. The obtained results are in good agreement with the experimental measurements.
Highlights
The study of aerodynamic performance of horizontal axis wind turbines has attracted many researchers in recent years because of potential applications in the production of electricity based on wind kinetic energy that falls into the category of clean renewable energy to the environment.This study is based on CFD simulation (Computation Fluid Dynamic) using the software ANSYS/Fluent [1] that solves the equations of fluid mechanics in 2D and 3D flows, incorporating highly advanced turbulence models
We cite some work done in recent years, such as that of Chandrala et al ([2], 2012), which deals with the aerodynamic analysis of a wind rotor of the NACA 4402 type by comparing the calculation results with CFD measurements for different angles of attack, the Working Yilei He et al ( [3] 2014) which focuses on optimizing the S809 airfoil, using a multi-objective algorithm MOGA, and the work of Bekhti et al ([4], 2010) worked on the simulation of the airflow around a NREL S809 airfoil to predict the dynamic stall phenomenon and understand the physical behavior of the flow around a rotor wind
The BEM theory is very successful in horizontal axis wind turbine blade design
Summary
The study of aerodynamic performance of horizontal axis wind turbines has attracted many researchers in recent years because of potential applications in the production of electricity based on wind kinetic energy that falls into the category of clean renewable energy to the environment. This study is based on CFD simulation (Computation Fluid Dynamic) using the software ANSYS/Fluent [1] that solves the equations of fluid mechanics in 2D and 3D flows, incorporating highly advanced turbulence models. This software uses the finite element method, appropriate digital techniques and features a mesh adapted to very complex configurations. Our study was focused on the numerical simulation using Ansys/Fluent software to understand and analyze the fine structure of the flow around wind turbine S809, and determine the characteristics for aerodynamic optimization and the improvement of the net power. The choice of a three-bladed wind rotor of the S809 type was made because of the availability of geometric and functional data provide a benchmark study
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
