The high emission of fossil fuels are major driving forces in renewable energy technology
development. In response, the lift-type vertical axis wind turbines (VAWT) is experiencing a …

Wind energy plays a vital role in the development sustainable energy due to its vast
availability, commercially ready technology, low cost, and great contribution to CO 2 …

Thanks to the continuous improvement of calculation resources, computational fluid
dynamics (CFD) is expected to provide in the next few years a cost-effective and accurate …

The relatively low power coefficient restricts the wide application of vertical axis wind
turbines (VAWTs). An effective solution to this problem is to design specific airfoil profiles …

In urban areas, vertical axis wind turbines have been installed on both sides of the road and
rooftop. Compared with rooftop, vertical axis wind turbines mounted on the side of a building …

Abstract Gurney Flaps (GFs) can enhance the aerodynamic performance of airfoils, making
them generate more lift and delaying the onset of stall. Since their potential was discovered …

Vertical axis wind turbines are receiving renewed attention due to the challenges faced by
horizontal axis wind turbines in recent years. To achieve commercial applications, a key …

The Φ-shaped Darrieus wind turbines offer promising applications owing to their
omnidirectionality and structural advantages. However, their poor performance at low tip …

In this paper we report on the design and testing of a novel vertical axis wind turbine (VAWT)
system. The system consists of two counter-rotating VAWT rotors and a deflector that is …

Aspect Ratio (AR) is one of the main design parameters of straight-bladed vertical axis
turbines. This paper will examine whether a high AR, with long blades and low tip losses, or …