Open AccessMeasurement of quality test of aerodynamic profiles in wind turbine blades using laser triangulation technique
Author(s) -
MorenoOliva Víctor Iván,
RománHernández Edwin,
TorresMoreno Eduardo,
DorregoPortela José Rafael,
AvendañoAlejo Maximino,
CamposGarcía Manuel,
SánchezSánchez Sergio
Publication year - 2019
Publication title -
energy science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 29
ISSN - 2050-0505
DOI - 10.1002/ese3.423
Subject(s) - aerodynamics , wind tunnel , turbine blade , airfoil , aerospace engineering , lift coefficient , drag , lift (data mining) , turbine , acoustics , marine engineering , structural engineering , optics , engineering , computer science , physics , mechanics , turbulence , reynolds number , data mining
The development of an optical contact instrument for measuring the geometric shape of aerodynamic profiles on blades of small power wind turbines is presented. The instrument uses the triangulation principle, where a structured line laser pattern is projected onto the surface of one of the faces of the blade under test, a camera captures the image of the line and is processed to interpret the distorted form of the projected line. A linear sweep of the instrument makes it possible to measure the profile in another section of the blade. Comparison and evaluation results of two symmetric profiles of the NACA 0012 family are presented, one manufactured in a 3D printer and the other one is a metal profile AF104 of a subsonic wind tunnel. Additionally, three sections of a blade with profile FX 63‐137 of a 1.5 kW wind turbine were evaluated. An aerodynamic analysis shows a reduction in the lift coefficient and in the efficiency of the aerodynamic profile, as well as an increase in the drag coefficient. The sensitivity of the instrument is 0.1 mm on the Z ‐axis.