摘要
基于N-S方程，结合RNG κ-ε湍流模型和DPM模型对风沙环境下风轮的冲蚀磨损行为进行数值计算。通过分析不同颗粒直径和浓度下风轮的冲蚀磨损特性，研究风沙对风力机叶片冲蚀磨损的主要部位，以及叶片磨损与颗粒粒径和沙尘浓度的关系。研究发现，叶片磨损最严重的区域位于叶片前缘部分，次严重区域为叶片压力面；颗粒粒径对叶片磨损区域和磨损速率的大小影响显著；颗粒浓度对磨损位置影响很小，叶片的磨损速率随着颗粒浓度的增加呈线性规律增加。
The RNG κ-ε model and DPM model are adopted to simulate the behavior of wind turbine blade erosion in sandy environment. The erosion areas on wind turbine blades and the relationship between the erosion and the difference of the particle size and the concentration are investigated by analyzing the erosion behavior size and concentration. The results show that the worst erosion areas appear on the leading under the different particle edge of the blades, and the severe are on the pressure surface of blades. Moreover, the particle size affects both the erosion areas and the erosion rate significantly. The particle concentration has little effect on the erosion location. However, the erosion rate is nearly proportional to the increase of particle concentration.
作者
李德顺
王成泽
李银然
李仁年
马瑞洁
Li Deshun1,2,3, Wang Chengze1, Li Yinran1,2,3, Li Rennian1,2,3, Ma Ruijie1(1. College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2. Gansu Provincial Technology Centre for Wind Turbines, Lanzhou 730050, China ; 3. Gansu Provincial Key Laboratory of Fluid Machinery and Systems, Lanzhou 730050, Chin)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第3期627-632,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51166009
51766009)
国家重点基础研究发展(973)计划(2014CB046201)
甘肃省自然科学基金(145RJZA059)
