Work

Comparative study of Gurney flap and straight upstream deflector as performance enhancement of lift-driven vertical axis wind turbines

Year: 2025

Type: article

Abstract: In this study, computational fluid dynamics is used to compare the effectiveness of performance enhancement of lift-type vertical axis wind turbines (LVAWTs) across different tip speed ratio (TSR) regimes between a Gurney flap (GF), straight upstream deflector (SUD), and their combination. The study found that the GF is more effective in improving the power coefficient of LVAWTs at low and medium TSR regimes, where dynamic stall is dominant. While both GF and SUD lose effectiveness as TSR increases, SUD performs better at high TSR regimes with more stable flow. However, combining GF and SUD does not provide additional performance benefits compared to using each device individually.

Source: International Journal of Green Energy

DOI: 10.1080/15435075.2025.2560607

Authors: Taurista Perdana Syawitri, Yufeng Yao, Jun Yao, Budi Chandra, Amiral Aziz

Institutions: National Research and Innovation Agency, University of the West of England

Language: English

Topic: Wind Energy Research and Development

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

OpenAlex ID: W4414599359

FWCI: 0.134

Cites: 46

Cited by: 1

Related to: 10