Selection of the optimal symmetrical, airfoil for a vertical axis wind turbine using computational fluid dynamics
DOI:
https://doi.org/10.18041/1909-2458/ingeniare.22.1344Keywords:
blade, cfd, airfoil, vawtAbstract
Vertical axis turbines (VAWT) were designed to generate energy at low power. The turbine performance is defined by the blade; the main component of these devices. In this paper, using the software ANSYS 14.0, the NACA 0015, NACA 0018, NACA 0021 and NACA 0025 profiles were evaluated in order the select the profile with the highest drag-lift ratio and the smoothest lift coefficient variation as a function of attack angle. The NACA 0025 profile was selected due to the dynamic stability showed at Reynolds number and angle of attack assessed.
Downloads
References
IDEAM, Atlas de viento y energía eólica en Colombia, Bogotá: IDEAM, 2008.
M. Castro, A. Colmenar, O. Perpiñán y C. Sánchez, Energía eólica, Madrid: Promotora General de Estudios, 2011.
M. P. Baldomero, "Análisis de diferentes álabes de un aerogenerador de eje vertical para oxigenar estanques de peces", Revista Mexicana de Ciencias Agrícolas, Nov- Dic, n. 4, pp.617-623, 2012.
O. Orduz y J. Suárez, Diseño y construcción de un prototipo de turbina eólica de eje vertical para generación a baja potencia, Bucaramanga: Universidad Industrial de Santandar, 2011.
D. Escánez, Diseño y fabricación de los álabes de un micro-aerogenerador de baja potencia, Barcelona: Universitat Politècnica de Catalunya, 2013.
Aerospace Department. (2015). UIUC Applied Aerodynamics Group. [Online]. Available en: http://m-selig.ae.illinois.edu/ads/coord_database.html#N
T. Ravikumar & B. Kumar, "Effect of Blade Thickness of Vertical Axis Wind Turbine on Power Generation", International Journal of Engineering Research & Technology, vol. 3, nº 10, pp. 932-916, 2014.
G. Reis, Análise numérica e experimental de perfis aerodinâmicos para aprimoramento do projeto de turbinas H-Darrieus, Porto Alegre: Universidade Federal do Rio Grande do Sul, 2013.
ANSYS, Turbulence Modeling: Introduction to NASYS FLUENT, ANSYS Inc, 2010.
E. Douvi, A. Tsavalos & D. Margaris, "Evaluation of the turbulence models for the simulation of the flow over a National Advisory Committee for Aeronautics (NACA) 0012 airfoil," Journal of Mechanical Engineering Research, vol. 4, no. 3, pp. 100-111, 2012.
R. E. Sheldahl & P. C. Klimas, Aerodynamic Characteristic of Seven Symmetrical Airfoil Sections Throught 180-Degree Angle of Attack for Use in Aerodynamic Analysis of Vertical Axis Wind Turbines, Albuquerque: Sandia National Laboratories, 1981.
J. López, Estudio de perfil aerodinámico NACA 6609, Santiago de Chile: Universidad de Santiago de Chile Facultad de Ingeneria. Departamento de Ingeniería Mecánica, 2012.
B. Londoño González and P. Sánchez, "Algoritmo novedoso para la detección de tareas repetitivas en el teclado", Investigación e Innovación en Ingenierías, vol. 3, no. 2, 2015. DOI: https://doi.org/10.17081/invinno.3.2.2031