Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Creation of a algorithm using the Blade Element Momentum (BEM) methodology for the aerodynamic analysis of horizontal axis wind turbines
Submission Author:
Felipe Eduardo de Farias , MG
Co-Authors:
Felipe Eduardo de Farias, Angie Lizeth Espinosa Sarmiento, Diego Mauricio Yepes Maya, Celso Antonio Bittencourt Sales Junior, Yina Faizully Quintero Gamboa
Presenter: Felipe Eduardo de Farias
doi://10.26678/ABCM.COBEM2023.COB2023-1248
Abstract
This paper presents a new methodology for conducting two-dimensional analyses of horizontal-axis wind turbines. Initially, the classical theory called Blade Element Momentum (BEM) was applied in the development of a Python algorithm. In this methodology, there is no need for other tools; the objective is to perform the analysis using only the algorithm. The logic of the code involves inputting fluid properties such as viscosity and density, as well as the geometric properties of the turbine, including radius, chord, and angular relationships. The software XFOIL is used to perform the aerodynamic calculations, with the Tip Loss Correction Factor, also applied to achieve more accurate analyses of the induced drag caused by blade tips. Furthermore, unlike other works, this methodology applies Montgomerie extrapolation, ensuring that the analysis is conducted to obtain a wider range of lift and drag coefficients. This allows for the determination of Thrust, Torque, and Total Power values. The code was validated with the literature,resulting in satisfactory values of the power coefficient.
Keywords
Horizontal axis turbine, Blande Element Momentum, BEM, wind energy, Algorithm in Python
