STUDY ON UNSTEADY AERODYNAMICS OF FLOATINGWIND TURBINE UNDER SURGE CONDITION

Zhou Le; Qin Ming; Zhang Xianfeng; Ma Lu; Shen Xin; Du Zhaohui

doi:10.19912/j.0254-0096.tynxb.2025-0100

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 709-715. DOI: 10.19912/j.0254-0096.tynxb.2025-0100

STUDY ON UNSTEADY AERODYNAMICS OF FLOATINGWIND TURBINE UNDER SURGE CONDITION

Zhou Le¹, Qin Ming², Zhang Xianfeng², Ma Lu², Shen Xin^1,3, Du Zhaohui^1,3

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Abstract

The hysteresis effect of the floating wind turbine caused by the wake induction effect and the airfoil unsteady aerodynamics under the surge condition is comparatively investigated based on the blade element momentum model, dynamic blade element momentum model and free vortex wake model, and the differences between the results predicted by different models are discussed. The results show that, for the hysteresis caused by the wake induction effect, the phase lag angle predicted by dynamic blade element momentum model is smaller than that of free vortex wake model, while for the hysteresis caused by airfoil unsteady aerodynamics, the phase lag angle predicted by blade element momentum model and dynamic blade element momentum model are larger than that predicted by free vortex wake model, after coupling with the airfoil dynamic stall model. Although there are differences in phase lag values predicted by different models, the variation trends of the hysteresis along the blade and the influence patterns of the surge parameters on the hysteresis given by different models are consistent.

Key words

floating wind turbines / surge / unsteady aerodynamic characteristics / hysteresis effect / model comparison

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Zhou Le, Qin Ming, Zhang Xianfeng, Ma Lu, Shen Xin, Du Zhaohui. STUDY ON UNSTEADY AERODYNAMICS OF FLOATINGWIND TURBINE UNDER SURGE CONDITION[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 709-715 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0100

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