Optimal design of the blunt trailing-edge wind wheel with a bionic V-riblets structure for H-type vertical axis wind turbines

Xu Zhang, Yuliang Qi, Lengshuang Cui, Wei Li, School of Aeronautics and Astronautics, Tiangong University, School of Energy and Safety Engineering, Tianjin Chengjian University

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

Published online on June 26, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Ahead of Print.
The unconventional V-riblets structure originated from the shark skin has excellent performance in drag-reduction, and is applied to the suction surface of the airfoil. The blade trailing-edge thickening delays the flow separation, increases the pressure ...