It should be noted that the average chord length in spanwise of the serrated blade is kept as the same to the straight blade, indicating a same solidity utilized in both the wind turbine models. The effects of the wavelength and amplitude for the power outputs of the VAWT will be discussed...
The effect of gap on the magnitude of the maximum lift coefficient. TABLE 10-2. Summary of the Aerodynamic Properties of Trailing Edge Devices Abbreviations: LE = leading edge TE = trailing edge Re test = Reynolds number during test CS = chord of LE device C = airfoil chord Dbl = double...
Review of computational fluid dynamics for wind turbine wake aerodynamics. Wind Energy 2011, 14, 799–819. [Google Scholar] [CrossRef] Mittal, A.; Sreenivas, K.; Taylor, L.K.; Hereth, L.; Hilbert, C.B. Blade-resolved simulations of a model wind turbine: Effect of temporal convergence....
The interaction of a turbulent flow with the leading edge of a blade is a main noise source mechanism for fans and wind turbines. Motivated by the silent flight of owls, the present paper describes an experimental study performed to explore the noise-reducing effect of comb-like extensions, wh...
Downstream of 50% Cx, the unsteady effect of Figure 21 gradually accumulates with the gradual development of the flow, and the unsteady loss caused by it is comparable to that in Figure 21. Since the fluctuating production of entropy is very different between the two working conditions, this ...
Figure 5. Effect of tubercle wavelength on the loss. It can be seen from Figure 5 that, overall, the total pressure loss of the turbine cascade tends to decrease as the tubercle amplitude A increases. In order to further clarify the influence of tubercle amplitude on the cascade total pres...
The results showed that, compared to the reference blade model, the wavy-shaped blade models improved the wind turbine blades’ aerodynamic performance under high course speeds or above the rated wind speed. Based on the findings, the key region along the blade where tubercles can be used to ...
A series of wind tunnel tests were performed to investigate the effect of turbulent inflows on the aerodynamic characteristics of variously modified trough incident leading-edge-protuberanced (LEP) wing configurations at various turbulence intensities. A self-developed passive grid made of parallel arrays...
3.1. Effect of Varied Maximum Flap Pitch Angles on Power Output In this section, a comparative analysis of the energy-harvesting performance of a wing with an integrated flap is performed against a baseline foil without a flap at a fixed maximum wing pitch angle (θo) of 75°. The flap ...
A small deformation of the leading edge can significantly change the aerodynamic performance under a strong non-linear effect, leading to increased operation and maintenance costs for engines. This review first focuses on leading-edge erosion morphology during service, and models of these damages. ...