This paper presents an analysis of sound pressure levels through theoretical modeling and experimental validation in a 1 kW small wind turbine. The models used in the theoretical analysis are BPM (Brooks, Pope, and Marcolini) ...

This study proposes a criterion for evaluating the turbulent boundary layer displacement thickness when predicting airfoil trailing-edge noise with semi-empirical methods. The boundary layer integral parameter is usually ...

This paper summarizes the determination of more realistic local Reynolds and Mach flow numbers at the blades of a large-diameter, horizontal-axis wind turbine designed specifically for this purpose with the aid of the blade ...

The use of renewable energies has been a practical and efficient solution for the application in several areas. Vertical wind turbines are mainly used to behave better in turbulent winds and emit low noise levels compared ...

Esta dissertação reúne dados sobre ruído de aerogeradores em parques eólicos, buscando evidências científicas para indicação de diretrizes que auxiliem na quantificação do conforto acústico. Buscaram-se dados na América ...

In the present work, a vertical axis turbine with straight blades was analyzed through a numerical simulation in three dimensions, the performance of the turbine was studied while synthetic jets were used as an active ...

This paper presents a study of the reasons why the owl flight is the quietest among the birds, trying to adapt features of the wings to the profile of wind turbine blades. The serration commonly known as "Owl's Wing Design” ...