Numerical Study of Flow Around Iced Wind Turbine Airfoil

Villalpando, Fernando; Reggio, Marcelo; Ilinca, Adrian

doi:10.1080/19942060.2012.11015401

Cited by 31 publications

(24 citation statements)

References 2 publications

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“…Villalpando et al [8] evaluated the e ciency of four turbulence models, i.e., Spalart Allmaras, SST k !, RNG k !, and RSM models, to estimate the aerodynamic coe cients. Among these turbulence models, SST k !…”

Section: Governing Equations and Air Ow Simulationsmentioning

confidence: 99%

“…The numerical simulation over a clean and ice-accreted NACA 63-415 airfoil using commercial package FLUENT and SST k ! turbulence model was conducted by Villalpando et al [8]. Li et al [6,17] also investigated the characteristics of surface icing on the wind turbine blades with the NACA0018 and NACA 7715 airfoils.…”

Section: Introductionmentioning

confidence: 99%

“…The assessment of performance losses on wind turbine blades due to ice accretion is a subject of particular interest to the wind turbine research community [8]. Both experimental and computational studies have been conducted to examine aerodynamic phenomena on iced airfoils and the e ects of ice formation on deterioration of Horizontal Axis Wind Turbines' (HAWTs) performance.…”

Section: Introductionmentioning

confidence: 99%

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Atmospheric Icing Effects of S816 Airfoil on a 600 kW Wind Turbine Performance

Ebrahimi

2017

Scientia Iranica

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Abstract. This study investigates the aerodynamic loads and energy losses of a typical 600 kW wind turbine with S816 airfoil blade under two di erent icing conditions. Three sections at di erent radial positions were considered to estimate the icing e ect along the blade. Ice accretion simulations in wet and dry regimes were carried out using the NASA LEWICE 3.2 computer program. The air ow simulations were performed with CFD method and SST k ! turbulence model. The results of these simulations, including streamlines, surface pressure, skin friction, lift, and drag coe cients, were inspected for both clean and iced airfoils. In the case of wet iced airfoil, a separation bubble was created in the leading edge due to a horn-shaped ice and then further downstream, the air ow was reattached. Ice-induced separation bubbles dominate the ow eld and aerodynamic performance of the wind turbine. In order to assess the production losses, the Blade Element Momentum (BEM) theory was used to calculate the power curves for clean and iced wind turbine blades. In the case of dry regime, deterioration of the performance is about 30% and, in another case, the turbine fails to produce any power at all.

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Section: Governing Equations and Air Ow Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Atmospheric Icing Effects of S816 Airfoil on a 600 kW Wind Turbine Performance

Ebrahimi

2017

Scientia Iranica

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“…Accumulation of ice on the leading edge surfaces of aircraft and wind turbine blades will result in disruption of smooth flow, reduction of lift and increase of drag, stall at much higher speeds than normal, vibrations due to mass imbalance, and damage of aircraft or wind turbine components due to ice shedding [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis of an Electro-Thermal Ice Protection System in Atmospheric Icing Conditions

Raj¹,

Myong²

2016

Journal of computational fluids engineering

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“…Dynamic overset grid technology for CFD simulation was presented in Li et al 15 for computation of bodies with relative motions, including elastic deformation. In Villalpando et al, 16 the streamlines around the clean and iced airfoil were analyzed to evaluate the ice impact on lift and drag with the SST k2v model. The performance of a turbine blade with a large leading edge diameter and wedge angle was investigated in Sun et al 17 Yelmule and EswaraRao Anjuri 18 is a case study in which the capability of CFD in predicting complex 3D wind turbine aerodynamics was demonstrated with NREL Phase VI data.…”

Section: Introductionmentioning

confidence: 99%

Developing the process in matching a wind turbine system to attain optimal performance

Kao

2016

Advances in Mechanical Engineering

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The objective of this article is to develop the procedure in the matching of turbine blades and generator to increase the efficiency of a wind turbine. Hydrodynamic simulation of turbine blades and the logic setting of the controller are always focused on obtaining maximum power from the turbine system. Research on the matching of the two systems, turbine blades and the generator, is rare. If turbine blades are not initially well matched with the generator, the optimal design of the turbine blades to reach peak performance will not be realized, and the controller will be unable to increase the power capture. Thus, the matching problem is worthy of being discussed. In this article, the efficiency of the wind turbine system is increased by determining the optimal constant voltage mode of the generator. As the optimal constant voltage mode is selected, the characteristics of the operating points, such as tip speed ratio, revolutions per minute, blade torque, and efficiency, can be identified by the crossover point of the T (torque)-N (r/min) curves of the turbine blades and the generator. A horizontal upwind turbine is treated as the study case here. It is suggested that the tip speed ratio value calculated by the determined revolutions per minute should be located in the high-efficiency region of efficiency curves of the turbine blades, but not in the steep-slope region of the selected constant voltage mode of the generator. The results show that, if the two systems operate well, the final output power at a low wind speed of 4-5 m/s will be increased by 65%-44%, and at a high wind speed of 10-12 m/s, it will be increased by 3%-5%.

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Numerical Study of Flow Around Iced Wind Turbine Airfoil

Cited by 31 publications

References 2 publications

Atmospheric Icing Effects of S816 Airfoil on a 600 kW Wind Turbine Performance

Atmospheric Icing Effects of S816 Airfoil on a 600 kW Wind Turbine Performance

Computational Analysis of an Electro-Thermal Ice Protection System in Atmospheric Icing Conditions

Developing the process in matching a wind turbine system to attain optimal performance

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