Determination of parameters affecting aerodynamic performance in S833 airfoil

Abstract

This study presents the investigation of the factors affecting the performance of the airfoil, which is supposed to be used in a low power wind turbine. Airfoil surface roughness, angle of attack and wind speed parameters and interactions between these parameters affect performance. The conditions that the airfoil will be exposed to in the field of use can be modeled in the wind tunnel beforehand, and its performance in working conditions can be predicted. For this purpose, the airfoil model prepared using a three-dimensional printer can be tested in the wind tunnel, and the most effective parameter on performance can be determined. With the factorial design method used differently from the literature, performance analysis can be performed without the need for long mathematical calculations and analyzes. As a result, the most effective parameter on the performance is found as the surface roughness from the experimental design model created according to the selected factor levels. The second important parameter is the angle of attack-surface roughness binary factor interaction.