Effect of Icing Airfoil on Aerodynamic Performance of Horizontal Axis Wind Turbine

Hoang, Pham Huu; Maeda, Takao; Kamada, Y.; Tada, T.; Hanamura, M.; Goshima, N.; Iwai, Kenichi; Fujiwara, Ami; Hosomi, Masao

doi:10.1115/1.4051946

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…The icing wind tunnel test methodology allows for an in-depth investigation of the theoretical aspects of wind energy and the actual situation [18]. Hoang et al [19] clarified the aerodynamic characteristics of an iced airfoil model in a wind tunnel by means of airfoil performance tests in a wind tunnel. The analysis results show that at higher wind speeds, the icing airfoil has a higher power rating than the clean airfoil, but the maximum output power decreases.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Surface Icing Characteristics on Blade Airfoil for Offshore Wind Turbines: Effects of Chord Length and Angle of Attack

Liang,

Zhao,

Shen

et al. 2024

Coatings

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Offshore wind turbines operating in frigid and humid climates may encounter icing on the blade surface. This phenomenon adversely impacts the aerodynamic efficiency of the turbine, consequently diminishing power generation efficacy. Investigating the distribution characteristics of icing on the blade surface is imperative. Hence, this study undertook icing wind tunnel tests on segments of DU25 airfoil, a prevalent type for offshore wind turbines, to examine such characteristics as different chord lengths and angles of attack. The results show a simultaneous increase in the blade icing area and growth rate of the net icing area with augmenting the chord length and angles of attack. The total icing area rate decreases by a factor of two when the chord length is doubled. The relative positioning of icing and the average icing thickness remain consistent across the airfoil blades with varying chord lengths. Comparing the icing shapes on blades of varying scales shows a similarity ranging from 84.06% to 88.72%. The results of this study provide insight into the icing characteristics of offshore wind turbines.

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Section: Introductionmentioning

confidence: 99%

An Experimental Study of Surface Icing Characteristics on Blade Airfoil for Offshore Wind Turbines: Effects of Chord Length and Angle of Attack

Liang,

Zhao,

Shen

et al. 2024

Coatings

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Unsteady aerodynamic prediction for iced airfoil based on multi-task learning

2022

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Ice accretion on wind turbine blades and wings changes the effective shape of the airfoil and considerably deteriorates the aerodynamic performance. However, the unsteady performance of iced airfoil is often difficult to predict. In this study the unsteady aerodynamic performance of iced airfoil is simulated under different pitching amplitude and reduced frequencies. In order to efficiently predict of aerodynamic performance under icing conditions, a multi-fidelity reduced-order model based on multi-task learning is proposed. The model is implemented using lift and moment coefficient of clean airfoil as low-fidelity data. Through using, the model can achieve aerodynamic prediction for different ice shapes and pitching motions. The results indicate that compared with single-fidelity and single-task modeling, the proposed model can achieve better accuracy and generalization capability. At the same time, the model can be generalized to different ice shapes, which can effectively improve the unsteady prediction efficiency.

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Large Eddy Simulation of the Layout Effects on Wind Farm Performance Coupling With Wind Turbine Control Strategies

Qiang

Yuan

Luo

et al. 2022

Journal of Energy Resources Technology

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Large-eddy simulation (LES) coupling with wind turbine control strategies is newly developed to quantitatively study the layout effects on wind farm performance. The turbine rotor is parameterized with an actuator line method (ALM), and the five-region generator-torque control and the Proportional-Integral pitch control are newly introduced to regulate the operation of the wind turbine. First, a dynamic inflow boundary condition is designed to validate the current simulation framework. The validation results show that the simulated power curve agrees well with the real power curve of the wind turbine, and the maximum power error of the simulation only accounts for 5% of the rated power. Then, to study the layout effects, four kinds of wind farm arrangements are designed by varying the alignment method and the turbine spacing. The results show that the staggered arrangement and increasing the stream-wise spacing are beneficial to reduce the velocity deficit. The power comparison results show that the staggered arrangement has obvious advantages among the four cases, and it increases the capacity factor by 25% and improves the wind farm efficiency by about 50% compared to the aligned arrangement. The present simulation framework can be used to optimize the turbine layout for the potential wind farms.

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Effect of Icing Airfoil on Aerodynamic Performance of Horizontal Axis Wind Turbine

Cited by 4 publications

References 7 publications

An Experimental Study of Surface Icing Characteristics on Blade Airfoil for Offshore Wind Turbines: Effects of Chord Length and Angle of Attack

An Experimental Study of Surface Icing Characteristics on Blade Airfoil for Offshore Wind Turbines: Effects of Chord Length and Angle of Attack

Unsteady aerodynamic prediction for iced airfoil based on multi-task learning

Large Eddy Simulation of the Layout Effects on Wind Farm Performance Coupling With Wind Turbine Control Strategies

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