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    Numerical Modeling of the Effects of Leading-Edge Erosion and Trailing-Edge Damage on Wind Turbine Loads and Performance

    Source: Journal of Engineering for Gas Turbines and Power:;2020:;volume( 142 ):;issue: 011::page 0111005-1
    Author:
    Papi, Francesco
    ,
    Cappugi, Lorenzo
    ,
    Perez-Becker, Sebastian
    ,
    Bianchini, Alessandro
    DOI: 10.1115/1.4048451
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Wind turbines operate in challenging environmental conditions. In hot and dusty climates, blades are constantly exposed to abrasive particles that, according to many field reports, cause significant damages to the leading edge. On the other hand, in cold climates similar effects can be caused by prolonged exposure to hail and rain. Quantifying the effects of airfoil deterioration on modern multi-MW wind turbines is crucial to correctly schedule maintenance and to forecast the potential impact on productivity. Analyzing the impact of damage on fatigue and extreme loading is also important to improve the reliability and longevity of wind turbines. In this work, a blade erosion model is developed and calibrated using computational fluid dynamics (CFD). The Danmarks Tekniske Universitet (DTU) 10 MW Reference Wind Turbine is selected as the case study, as it is representative of the future generation wind turbines. Lift and Drag polars are generated using the developed model and a CFD numerical setup. Power and torque coefficients are compared in idealized conditions at two wind speeds, i.e., the rated speed and one below it. Full aero-servo-elastic simulations of the turbine are conducted with the eroded polars using NREL's BEM-based code OpenFAST. Sixty-six 10-min simulations are performed for each stage of airfoil damage, reproducing operating conditions specified by the IEC 61400-1 power production DLC-group, including wind shear, yaw misalignment, and turbulence. Aeroelastic simulations are analyzed, showing maximum decreases in CP of about 12% as well as reductions in fatigue and extreme loading.
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      Numerical Modeling of the Effects of Leading-Edge Erosion and Trailing-Edge Damage on Wind Turbine Loads and Performance

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4274726
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    • Journal of Engineering for Gas Turbines and Power

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    contributor authorPapi, Francesco
    contributor authorCappugi, Lorenzo
    contributor authorPerez-Becker, Sebastian
    contributor authorBianchini, Alessandro
    date accessioned2022-02-04T22:01:26Z
    date available2022-02-04T22:01:26Z
    date copyright10/20/2020 12:00:00 AM
    date issued2020
    identifier issn0742-4795
    identifier othergtp_142_11_111005.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4274726
    description abstractWind turbines operate in challenging environmental conditions. In hot and dusty climates, blades are constantly exposed to abrasive particles that, according to many field reports, cause significant damages to the leading edge. On the other hand, in cold climates similar effects can be caused by prolonged exposure to hail and rain. Quantifying the effects of airfoil deterioration on modern multi-MW wind turbines is crucial to correctly schedule maintenance and to forecast the potential impact on productivity. Analyzing the impact of damage on fatigue and extreme loading is also important to improve the reliability and longevity of wind turbines. In this work, a blade erosion model is developed and calibrated using computational fluid dynamics (CFD). The Danmarks Tekniske Universitet (DTU) 10 MW Reference Wind Turbine is selected as the case study, as it is representative of the future generation wind turbines. Lift and Drag polars are generated using the developed model and a CFD numerical setup. Power and torque coefficients are compared in idealized conditions at two wind speeds, i.e., the rated speed and one below it. Full aero-servo-elastic simulations of the turbine are conducted with the eroded polars using NREL's BEM-based code OpenFAST. Sixty-six 10-min simulations are performed for each stage of airfoil damage, reproducing operating conditions specified by the IEC 61400-1 power production DLC-group, including wind shear, yaw misalignment, and turbulence. Aeroelastic simulations are analyzed, showing maximum decreases in CP of about 12% as well as reductions in fatigue and extreme loading.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleNumerical Modeling of the Effects of Leading-Edge Erosion and Trailing-Edge Damage on Wind Turbine Loads and Performance
    typeJournal Paper
    journal volume142
    journal issue11
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4048451
    journal fristpage0111005-1
    journal lastpage0111005-12
    page12
    treeJournal of Engineering for Gas Turbines and Power:;2020:;volume( 142 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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