Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
LIFT AND DRAG CORRELATIONS FOR AN AIRFOIL ARRAY THROUGH NUMERICAL SIMULATION ANALYSIS.
Submission Author:
Luan Labigalini , PR
Co-Authors:
Luan Labigalini, Ricardo Salvo, Rafael Sene de Lima, Ismael Marchi Neto, Rodrigo Corrêa da Silva
Presenter: Luan Labigalini
doi://10.26678/ABCM.COBEM2019.COB2019-1872
Abstract
Energy demand is continuously increasing and therewith the greenhouse emissions amount. One viable alternative is based on the investment in renewable energy sources. Even it corresponding to about 14% of global matrix this percentage should still increase in near future, reducing the importance of consolidated sources such as coal and oil. Aiming in hydropower utilization this paper is the first of a series concerning hydrokinetic turbines development. In this first approach the main objective is to investigate lift and drag coefficients over an airfoil array, and then, find useful correlations for hydrokinetic turbines. Unsteady two-dimensional numerical simulations of the flow around a NACA4412 airfoil profile were performed, and the k-ω SST turbulence model was adopted. Several configurations involving different angle of attack and distance between subsequent profiles were analyzed.
Keywords
renewable energy, hydrokinetic turbines, CFD, NACA 4412
