The Influence of Sea Waves on Offshore Wind Turbine Aerodynamics

被引：21

作者：

AlSam, A. ^{[1
]}

Szasz, R. ^{[1
]}

Revstedt, J. ^{[1
]}

机构：

[1] Dept Energy Sci, SE-22100 Lund, Sweden

来源：

JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME | 2015年 / 137卷 / 05期

关键词：

ATMOSPHERIC BOUNDARY-LAYER; LARGE-EDDY SIMULATIONS; SWELL;

D O I：

10.1115/1.4031005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The impacts of swells on the atmospheric boundary layer (ABL) flows and by this on the standalone offshore wind turbine (WT) performance are investigated by using large eddy simulations (LES) and actuator-line techniques. At high swell to wind speed ratio, the swell-induced stress reduces the total wind stress resulting in higher wind velocity, less wind shear, and lower turbulence intensity level. These effects increase by increasing swell to wind speed ratio (C/U) and/or swell steepness. Moreover, for the same hub-height wind speed (U-hub), the presence of swells increases the turbine power extraction rate by about 3% and 8.4% for C/U-hub = 1.53 and 2.17, respectively.

引用

页数：10

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