Static aerodynamic characteristics of symmetrical wind turbine airfoils considering the influence of near-ocean underlying surface

Jia Xiaofeng; Huang Wen; Hu Chuanxin; Xu Xinye

doi:10.7638/kqdlxxb-2024.0164

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Static aerodynamic characteristics of symmetrical wind turbine airfoils considering the influence of near-ocean underlying surface

更新时间：2026-05-28

- Static aerodynamic characteristics of symmetrical wind turbine airfoils considering the influence of near-ocean underlying surface
- Vol. 44, Issue 1, Pages: 128-136(2026)
- 作者机构：
  
  武汉科技大学城市建设学院,武汉,430081
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2024.0164
  CLC： TK83;V211.3
- Published：2026
- 稿件说明：
移动端阅览
贾晓峰, 黄雯, 胡传新, 等. 考虑近距离海洋下垫面影响的对称风机翼型静气动特性[J]. 空气动力学学报, 2026, 44(1): 128−136.

Jia Xiaofeng, Huang Wen, Hu Chuanxin, et al. Static aerodynamic characteristics of symmetrical wind turbine airfoils considering the influence of near-ocean underlying surface[J]. 2026, 44(1): 128-136.
贾晓峰, 黄雯, 胡传新, 等. 考虑近距离海洋下垫面影响的对称风机翼型静气动特性[J]. 空气动力学学报, 2026, 44(1): 128−136. DOI： 10.7638/kqdlxxb-2024.0164

Jia Xiaofeng, Huang Wen, Hu Chuanxin, et al. Static aerodynamic characteristics of symmetrical wind turbine airfoils considering the influence of near-ocean underlying surface[J]. 2026, 44(1): 128-136. DOI： 10.7638/kqdlxxb-2024.0164.

摘要

为探究海洋下垫面对近海面静态风机翼型气动特性的干扰机理，以NACA0012对称翼型为研究对象，采用流体体积分数模型构建风浪-翼型耦合场，结合翼型升力系数时频特征和表面流场，分析不同风浪参数、翼型与静水面相对距离下的静气动特征，揭示近距离海洋下垫面对大攻角静态翼型气动特征的干扰机理。研究发现：海洋下垫面通过附加攻角

间接影响近海面翼型气动特性，与风场相比，风浪场中翼型的静态失速攻角减小，其减小量取决于附加攻角平均值；海洋下垫面对翼型各流动阶段均存在干扰，但显著抑制了大攻角翼型涡的发展，导致前缘漂移涡与尾缘脱落涡发展的机制存在差异，前者是由海洋下垫面干扰引起的长周期高强度漂移现象，后者由大攻角翼型自身的流动分离特性主导，表现为短周期低强度脱落，且风浪场翼型尾涡脱落频率均小于风场翼型的涡脱频率（0.537 Hz）；翼型距静水面30 m时，海洋下垫面的干扰效应显著减弱，出现独立的尾缘涡脱落频率（0.430 Hz），且涡形态更复杂。本文研究对提高大型浮式风机安全性能具有一定的借鉴意义。

Abstract

This paper presents a numerical investigation into the effects of the ocean underlying surface (OUS) on the static aerodynamic characteristics of a symmetric NACA0012‌ airfoil ‌near the sea surface

utilizing the ‌volume of fluid (VOF)‌ model. The interference of OUS on the static aerodynamic characteristics of ‌NACA0012‌ is thoroughly studied by examining the time-frequency characteristics of lift coefficients and flow field characteristics under different ‌wind-wave conditions. Results show that the interference exerted by OUS originates from an additional ‌angle of attack. ‌Root mean square (RMS)‌ values of the airfoil lift coefficients and the additional ‌angle of attack exhibit a similar variation trend with wave height and wind speed. The airfoil's static stall ‌angle of attack in the ‌wind-wave field‌ is smaller than that in the wind field

with the decrement depending on the mean value of the additional ‌angle of attack. The interference of OUS persists throughout all flow stages of the airfoil

but it significantly suppresses the development of airfoil vortices only at high ‌angles of attack

leading to different development mechanisms for leading-edge drift vortices and trailing-edge shedding vortices. The former is a long-period (‌wave period‌ of 4.5 s)

high-intensity drift disturbed by OUS

while the latter is a short-period

low-intensity shedding induced by the flow separation around the high angles of attack of airfoil itself. Notably

the shedding frequency of trailing edge vortices in the wind wave field is 0.537 Hz lower than that in the wind field. When the airfoil is positioned 30 meters above the ‌still water surface‌

an independent trailing-edge vortex shedding frequency of 0.430 Hz appears

accompanied by a more ‌complex‌ vortex shape. The findings of this study shed light on improving the safety performance of large floating wind turbines.

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