Investigation of a new 3D wake model of offshore floating wind turbines subjected to the coupling effects of wind and wave

Zhang Huanqiang, Gao Xiaoxia, Lu Hongkun, Zhao Qiansheng, Zhu Xiaoxun, Wang Yu and Zhao Fei

Applied Energy, 2024, vol. 365, issue C, No S0306261924005725

Abstract: Accurate prediction of the wake is conducive to achieving the safe and efficient operation of large-scale offshore floating wind turbines. To further understand the wake characteristics of large-scale offshore floating wind turbine, a three-dimensional wake model with the consideration of wind and wave interaction is proposed and verified in this paper. The unique motion response characteristics of offshore floating wind turbines under the influence of external conditions is studied. The factors of platform position motion and wind rotor deflection angle are introduced to correct the model. The calculated results are compared with wind tunnel tests, field measurements and other literature data, verifying the accuracy of the improved model. The comparison results show that the maximum error of the newly proposed model is generally within 6%, except for the wake centerline velocity comparison results, which is about 10%. Afterwards, the characteristics of velocity distribution in the wake area are clarified by analyzing the influence of various parameters on the wake characteristics. The effect of wind and wave on wake velocity deficit and anisotropy of power output is also investigated. The research can provide reference for wind turbines wake analysis and efficient operation.

Keywords: Offshore floating wind turbines; Three-dimensional wake model; Wind rotor deflection angle; Wake characteristics; Wind and wave effect (search for similar items in EconPapers)
Date: 2024
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.apenergy.2024.123189

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