STUDY ON HYDRODYNAMIC SPECTRAL CHARACTERISTICS OF MULTIPLE PILE FOUNDATIONS FOR OFFSHORE WIND TURBINES UNDER WAVE-CURRENT INTERACTION

Ji Renwei; Wu Miankui; Zhu Renqing; Huang Fei; Sun Ke

doi:10.19912/j.0254-0096.tynxb.2024-1497

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 459-467. DOI: 10.19912/j.0254-0096.tynxb.2024-1497

STUDY ON HYDRODYNAMIC SPECTRAL CHARACTERISTICS OF MULTIPLE PILE FOUNDATIONS FOR OFFSHORE WIND TURBINES UNDER WAVE-CURRENT INTERACTION

Ji Renwei^1,2, Wu Miankui¹, Zhu Renqing¹, Huang Fei¹, Sun Ke³

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Abstract

In order to investigate the nonlinear hydrodynamic interference issues associated with multiple foundations during the development of offshore wind power arrays, this paper establishes a numerical analysis model for the hydrodynamics of OWTFs under wave-current action, utilizing the computational fluid dynamics （CFD） method. The high-precision detached-eddy simulation （DES） technique is employed to numerically simulate the flow field around OWTFs. Additionally, a frequency domain analysis method is applied to investigate the hydrodynamic spectral characteristics of OWTFs under varying wave-current parameters, including wave amplitude, period, and flow velocity. The results indicate the following： 1） When flow velocity and wave period are fixed, the spectral peak frequency and peak value exhibit nonlinear changes with increasing wave amplitude, and the proportion of high amplitude gradually rises with wave amplitude; 2） When flow velocity and wave amplitude are held constant, an increase in wave period leads to a rise in spectral peak frequency, with both spectral peak and sub-peak occurring at stable frequencies. The spectral peak value shows irregular fluctuations, and the proportion of high amplitude varies with changes in the period; 3） The spectral characteristics of the wave force on OWTFs is determined by the relative proportion of the water particle velocity of wave parameters in the water particle velocity of wave-current. As flow velocity increases, the frequency of the spectral peak rises under the same wave amplitude and period conditions, and a sub-peak emerges at twice the frequency of the spectral peak. Conversely, when flow velocity decreases, the sub-peak frequency is only 1.5 times that of the spectral peak frequency.

Key words

offshore wind power / wave-current interaction / offshore wind turbine foundations （OWTFs） / CFD / detached-eddy simulation （DES） / flow around multiple foundations / spectral characteristic

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Ji Renwei, Wu Miankui, Zhu Renqing, Huang Fei, Sun Ke. STUDY ON HYDRODYNAMIC SPECTRAL CHARACTERISTICS OF MULTIPLE PILE FOUNDATIONS FOR OFFSHORE WIND TURBINES UNDER WAVE-CURRENT INTERACTION[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 459-467 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1497

References

[1] VEERS P, DYKES K, LANTZ E, et al. Grand challenges in the science of wind energy[J]. Science, 2019, 366(6464): eaau2027.
[2] 纪仁玮, 孙科, 朱仁庆, 等. 新一代涡识别方法在大偏航条件下风电机组复杂尾涡辨识中的适用性研究[J]. 太阳能学报, 2023, 44(7): 486-495.
JI R W, SUN K, ZHU R Q, et al.Study on applicability of new generation vortex identification method for complex wake vortex identification of wind turbines under large yaw conditions[J]. Acta energiae solaris sinica, 2023, 44(7): 486-495.
[3] JI R W, LI X Q, YE Y L, et al.Hydrodynamic characteristics of offshore wind turbine pile foundations under combined focusing wave-current conditions[J]. Journal of marine science and engineering, 2024, 12(11): 2068.
[4] ZENG X M, SHAO Y L, FENG X Y, et al.Nonlinear hydrodynamics of floating offshore wind turbines: a review[J]. Renewable and sustainable energy reviews, 2024, 191: 114092.
[5] 纪仁玮. 基于致动线模型的潮流能水轮机尾流数值方法研究及应用[D]. 哈尔滨: 哈尔滨工程大学, 2023.
JI R W.Research and application of the numerical method for the tidal current turbine wake based on the actuator line model[D]. Harbin: Harbin Engineering University, 2023.
[6] MORISON J R, JOHNSON J W, SCHAAF S A.The force exerted by surface waves on piles[J]. Journal of petroleum technology, 1950, 2(5): 149-154.
[7] RAINEY R C T. A new equation for calculating wave loads on offshore structures[J]. Journal of fluid mechanics, 1989, 204: 295-324.
[8] FALTINSEN O M, NEWMAN J N, VINJE T.Nonlinear wave loads on a slender vertical cylinder[J]. Journal of fluid mechanics, 1995, 289: 179-198.
[9] MALENICA, MOLIN B.Third-harmonic wave diffraction by a vertical cylinder[J]. Journal of fluid mechanics, 1995, 302: 203-229.
[10] 李姜华. 基于IB-LBM方法的圆柱绕流流场结构统计特性研究[D]. 上海: 上海应用技术大学, 2020.
LI J H.Research on the statistical characteristics of the flow structures around the cylinder based on the IB-LBM[D]. Shanghai: Shanghai Institute of Technology, 2020.
[11] 林凌霄, 陈威, 林永水, 等. 并列双圆柱绕流特性和互扰效应数值模拟研究[J]. 应用力学学报, 2021, 38(2): 844-850.
LIN L X, CHEN W, LIN Y S, et al.Numerical simulation of the characteristics and interaction of flow around two side-by-side arranged circular cylinders[J]. Chinese journal of applied mechanics, 2021, 38(2): 844-850.
[12] CHAKRABARTI S K.Transverse forces on vertical tube array in waves[J]. Journal of the waterway, port, coastal and ocean division, 1982, 108(1): 1-15.
[13] 李杰. 单桩及群桩的波流力特性研究[D]. 成都: 西南交通大学, 2019.
LI J.Study on wave-current force characteristics of single pile and pile group structure[D]. Chengdu: Southwest Jiaotong University, 2019.
[14] 蘧鑫晨. 海上风机三脚架基础水动力特性试验及数值研究[D]. 杭州: 浙江大学, 2019.
QU X C.Experimental and numerical investigation on flow Characteristics of offshore wind turbine with tripod foundation[D]. Hangzhou: Zhejiang University, 2019.
[15] JONSSON I G, SKOUGAARD C, WANG J D.Interaction between waves and currents[M]//Coastal Engineering 1970, Reston: ASCE, 1970: 489-507.
[16] 徐立论. 流对波场影响的计算[J]. 海洋湖沼通报, 1985(4): 18-22.
XU L L.Calculation of the influence of current on wave field[J]. Transactions of oceanology and limnology, 1985(4): 18-22.
[17] 吴永胜, 练继建, 王兆印, 等. 波浪-水流相互作用模型[J]. 水利学报, 2002(4): 3-17.
WU Y S, LIAN J J, WANG Z Y, et al.Interaction model for wave and current[J]. Journal of hydraulic engineering, 2002(4): 3-17.
[18] 李玉成, 张永刚. 应用Boussinesq方程对非线性波与流相互作用的理论研究[J]. 水动力学研究与进展(A辑), 1996(2): 205-211.
LI Y C, ZHANG Y G.A study of nonlinear interaction of wave-current with boussinesq equation[J]. Chinese journal of hydrodynamics, 1996(2): 205-211.
[19] 姚顺, 马宁, 丁俊杰, 等. 规则波与流相互作用的数值模拟与不确定度分析[J]. 哈尔滨工程大学学报, 2021, 42(2): 172-178.
YAO S, MA N,DING J J, et al.Numerical simulation and uncertainty analysis of wave-current interaction with regular waves[J]. Journal of Harbin Engineering University, 2021, 42(2): 172-178.
[20] 纪仁玮, 孙科, 张玉全, 等. 基于改进延迟分离涡方法的潮流能水轮机纵摇运动水动力分析[J]. 太阳能学报, 2023, 44(6): 15-23.
JI R W, SUN K, ZHANG Y Q, et al.hydrodynamic analysis of pitch motion of tidal current turbine based on improved delayed detached eddy simulation method[J]. Acta energiae solaris sinica, 2023, 44(6): 15-23.
[21] 王海宇, 沈侃敏, 贺瑞, 等. 海床加固对海上风电单桩基础的动力特性影响[J]. 太阳能学报, 2024, 45(6): 607-618.
WANG H Y, SHEN K M, HE R, et al.Effect of shallow seabed reinforce on dynamic properties of monopile offshore wind turbine foundation[J]. Acta energiae solaris sinica, 2024, 45(6): 607-618.
[22] 张承婉, 龙凯, 陆飞宇, 等. 海上风电机组支撑结构一体化设计方法[J]. 太阳能学报, 2024, 45(6): 646-651.
ZHANG C W, LONG K, LU F Y, et al.Integerated design method of supporting structure for offshore wind turbine[J]. Acta energiae solaris sinica, 2024, 45(6): 646-651.
[23] YU D W, YE J H, YIN C Q.Dynamics of offshore wind turbine and its seabed foundation under combined wind-wave loading[J]. Ocean engineering, 2023, 286: 115624.
[24] CELIK I B, GHIA U, ROACHE P J, et al. Procedure for estimation and reporting of uncertainty due to discretization in CFD applications[J]. Journal of fluids engineering-transactions of the ASME, 2008, 130(7): 078001-1-078001-4.
[25] JI R W, SUN K, ZHANG J H, et al.A novel actuator line-immersed boundary (AL-IB) hybrid approach for wake characteristics prediction of a horizontal-axis wind turbine[J]. Energy conversion and management, 2022, 253: 115193.
[26] JI R W, ZHENG J H, XUE M A, et al.Investigations on the performance and wake dynamics of a tidal stream turbine under different yaw-offset conditions[J]. Physics of Fluids, 2025, 37(1): 015192.
[27] JI R W, WU M K, ZHENG J H, et al.Lagrangian dynamic large-eddy simulation of the performance of a horizontal-axis tidal turbine with an actuator-line method[J]. Physics of Fluids, 2025, 37(7): 075169.
[28] 陈林雅. 波流荷载作用下桩基周围海床响应的实验研究及数值模拟[D]. 成都: 西南交通大学, 2020.
CHEN L Y.Experimental and numerical studies of seabed response around pile foundation under wave and current loading[D]. Chengdu: Southwest Jiaotong University, 2020.