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Conference
Open access
Sep 2026
Coupled aerodynamic and aeroacoustic effects of trailing-edge serrations in a low-Reynolds-number vertical-axis wind turbine (VAWT)
Rotating machinery operating at low-to-moderate Reynolds numbers is governed by complex transport phenomena that strongly influence aerodynamic loading, noise emission, and structural fatigue. In vertical-axis wind turbines (VAWTs), cyclic variations in angle of attack and Reynolds number make trailing-edge flow physic...
D. Rodríguez-García, L. Santamaría, S. Velarde-Suárez et al.
· Journal of Physics, Conferen... · 0 citations
Sep 2026
Investigation on aerodynamic characteristics of horizontal-axis wind turbine with boundary-layer suction based on γ -Re θ transition model
Boundary layer suction (BLS) mitigates flow separation and stall on horizontal-axis wind turbine (HAWT) blades by sucking low-momentum fluid from the suction surface, thereby enhancing aerodynamic performance. Three-dimensional numerical simulations of the National Renewable Energy Laboratory Phase VI wind turbine are...
R. Duan, Shuai Zhang, Xuan-Chen Liu et al.
· The Physics of Fluids · 0 citations
Open access
Aug 2026
3D CFD Simulation of a H-Darrieus Turbine with Variable Pitch: A Quantitative Vorticity Analysis
Vortices and dynamic stall play a critical role in the performance of vertical-axis wind turbines, often leading to significant energy losses. Active and passive control strategies can be employed to delay the dynamic stall, particularly at low tip-speed ratios below 0.5. In this study, three-dimensional Computational...
Angelo Escudero Romero, A. Blasetti, H. de Lasa
· Processes · 0 citations
Sep 2026
Unsteady separated-flow dynamics over a box-girder section under sinusoidal inflow: Effects of angle of attack and Keulegan–Carpenter number
The aerodynamic behavior of bluff bridge-deck sections in unsteady inflow depends on both the angle of attack and the time scale of the imposed velocity fluctuation. Active-control wind tunnel measurements and two-dimensional unsteady Reynolds-averaged Navier–Stokes simulations are used to examine surface pressure, aer...
Hao-Hong Li, Ke Wang, Bo-Fu Wu et al.
· The Physics of Fluids · 0 citations
Open access
Sep 2026
Effect of Inclined Cavities on Vortex Evolution in a Vertical-Axis Wind Turbine
This study investigates the influence of inclined surface cavities on vortex evolution and aerodynamic performance in a three-bladed H-Darrieus vertical-axis wind turbine. A baseline NACA0012 rotor and four cavity-modified configurations were evaluated using two-dimensional transient computational fluid dynamics with a...
I. Bucur, D. Crunteanu, M. Dombrovschi
· INCAS Bulletin · 0 citations
Sep 2026
Unsteady aerodynamic response mechanism of double-delta wing under high angle of attack
This study conducts a numerical investigation into the unsteady characteristics of a 80°/65° double-delta wing at high angle of attack using delayed detached-eddy simulation. By combining power spectral density analysis and dynamic mode decomposition, the characteristic frequencies and spatial patterns of the dominant...
Feng Qu, Shao-Kai Duan, Qing Wang et al.
· The Physics of Fluids · 0 citations