Study and Validation of Three-dimensional Entrainment Wake Model for Wind-turbine

被引：0
|
作者：
Ling Z. [1 ]
Zhao Z. [1 ]
Liu Y. [1 ]
Liu H. [1 ]
Ma Y. [1 ]
Wang D. [1 ]
机构：
[1] College of Energy and Electrical Engineering, Hohai University, Jiangsu Province, Nanjing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2023年 / 43卷 / 17期
基金：
中国国家自然科学基金;
关键词：
wake model; wake velocity; wind shear; wind turbine;
D O I：
10.13334/j.0258-8013.pcsee.220803
中图分类号：
学科分类号：
摘要：
A one-dimensional linear entrainment (LE) wake model is established based on the conservation laws of mass and momentum contributing to the high accuracy of wake prediction, while assuming a top-hat shape of wake distribution. A two-dimensional cosine LE (2DCLE) wake model is proposed by using the cosine function to correct the radial distribution of wake velocity and using the empirical equation of turbulence intensity to correct the model. Then, a three-dimensional cosine LE (3DCLE) model is advanced considering the wind shear effect based on the 2DCLE model. The prediction accuracy of the proposed 3DCLE model is validated with a wind-tunnel measurement and two wind-site tests. The results show that the 3DCLE model is able to predict the wake-velocity loss along the lateral and vertical directions more accurately than the conventional models, and its maximum and minimum errors are the smallest among the compared models. ©2023 Chin.Soc.for Elec.Eng.
引用
收藏
页码：6639 / 6645
页数：6
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