海上风电较大直径单桩基础波浪荷载特性研究

何奔; 宋孟夏; 魏茂兴; 李炜; 何方

doi:10.19912/j.0254-0096.tynxb.2023-1318

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (12) : 324-330. DOI: 10.19912/j.0254-0096.tynxb.2023-1318

海上风电较大直径单桩基础波浪荷载特性研究

何奔¹, 宋孟夏², 魏茂兴², 李炜¹, 何方²

作者信息 +

STUDY ON WAVE LOAD CHARACTERISTICS OF LARGER DIAMETER MONOPILE FOUNDATION FOR OFFSHORE WIND POWER

He Ben¹, Song Mengxia², Wei Maoxing², Li Wei¹, He Fang²

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文章历史 +

摘要

海上风电单桩基础趋向大型化,桩基对于入射波场的影响增强,工程上计算波浪荷载最为常用的莫里森方程法无法再忽略绕射效应。为研究海上风电较大直径单桩基础（桩径波长比在0.15~0.25之间）在常规海况条件下的水平波浪荷载,采用物理模型实验与计算流体动力学数值模拟相结合的方法,分析海上风电单桩基础最大水平波浪荷载在不同桩基几何参数和波浪水动力条件下的变化规律;给出较大直径单桩基础惯性力系数C_M的取值曲线;并基于莫里森方程法提出计算较大直径单桩基础最大水平波浪荷载的实用经验公式。

Abstract

The Morison equation is a widely used formula for calculating wave loads on offshore wind turbine monopile foundations. However, as monopile diameters increase, diffraction effects can no longer be ignored, and the Morison equation method becomes less accurate. This study investigates the horizontal wave load on large-diameter monopile foundations with a pile-diameter to wavelength ratio ranging from 0.15 to 0.25. To this end, a combination of physical model experiments and computational fluid dynamics （CFD） numerical simulations was employed. The variation of the maximum horizontal wave load was analyzed for monopiles of different diameters under different wave conditions. A curve depicting the values of the inertia force coefficient was given, and an empirical formula based on the Morison equation was proposed for calculating the maximum horizontal wave load on large-diameter monopile foundations.

导出引用

何奔, 宋孟夏, 魏茂兴, 李炜, 何方. 海上风电较大直径单桩基础波浪荷载特性研究[J]. 太阳能学报. 2024, 45(12): 324-330 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1318

He Ben, Song Mengxia, Wei Maoxing, Li Wei, He Fang. STUDY ON WAVE LOAD CHARACTERISTICS OF LARGER DIAMETER MONOPILE FOUNDATION FOR OFFSHORE WIND POWER[J]. Acta Energiae Solaris Sinica. 2024, 45(12): 324-330 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1318

中图分类号： TM614

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