2015
DOI: 10.1016/j.renene.2014.10.009
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Impact of uncertainty in airfoil characteristics on wind turbine extreme loads

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Cited by 42 publications
(46 citation statements)
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“…In particular, its influence on the airfoil angle of attack is the most significant, whereas minor effects are noticed on the Mach and Reynolds numbers. The level of uncertainty considered for each variable is consistent with those typically employed in the literature of uncertainty-based analysis in fluid dynamics (e.g., [42][43][44]). Their combined effect results in a large variation of the angle of attack once it is propagated through the BEMT equations.…”
Section: A Uncertain Operating Conditionsmentioning
confidence: 96%
“…In particular, its influence on the airfoil angle of attack is the most significant, whereas minor effects are noticed on the Mach and Reynolds numbers. The level of uncertainty considered for each variable is consistent with those typically employed in the literature of uncertainty-based analysis in fluid dynamics (e.g., [42][43][44]). Their combined effect results in a large variation of the angle of attack once it is propagated through the BEMT equations.…”
Section: A Uncertain Operating Conditionsmentioning
confidence: 96%
“…However, tower loads are difficult to calculate. Load calculation involves multisource uncertainties that include variations in wind tunnels measurements, geometric distortions of the blade under loading, 3D rotational correction, and so on [37]. erefore, tower loads under the extreme wind speed cannot quantify by the probability model.…”
Section: A Tall Wind Turbine Towermentioning
confidence: 99%
“…The rotor blade reliability under extreme loads is closely related to uncertainty sources, e.g., uncertainty in airfoil aerodynamic characteristics and uncertainty in the extreme turbulence model used for load calculation. For example, Abdallah et al [84] found that the uncertainties in aerodynamic static lift and drag coefficients had a tangible reduction in both the extreme load safety factors and the dimension of structural components when exposed to extreme loading conditions. In another article, Abdallah et al [61] demonstrated that advanced load alleviation control systems could contribute to improved structural reliability by reducing the magnitude and scatter of the extreme loads.…”
Section: Rotor Bladesmentioning
confidence: 99%