排灌机械工程学报2017，Vol.35Issue(4)：340-344,5.DOI:10.3969/j.issn.1674-8530.16.0201
不同入流条件对屋顶风力机输出功率的预测
Predicting output power of roof wind turbine with different inflow conditions
摘要
Abstract
In the light of the complex and variable of terrain and wind energy on the the city building,the index,logarithmic and semilogarithmic wind profiles were established according to 3 kinds of typical surface roughness of urban and suburban to explore the influence of inflow condition on output power of roof wind turbine.An S airfoil horizontal axis wind turbine was selected as the calculation model,which was mounted at the appropriate location on the flat roof.User Defined Functions were used to load three kinds of inflow conditions,and the turbulence characteristics of the flow field and the output power of the wind turbine were numerically calculated.The results show that under the index,the acceleration effect is smaller and the turbulence intensity is higher,not suitable for wind turbine installatlon.Although the power of wind turbine is higher under logarithmic inflow,turbulence intensity is bigger,the number of wind turbine installation and appropriate location will be reduced,and there exist the problems such as structural damage and cost increase.The flow separation,speed block and the turbulence intensity are all small under semi logarithmic inflow,the building wind-collecting effect is obvious,which is suitable to install more wind turbines,and can avoid the damage of wind turbine structure.关键词
风力机/屋顶流场/入流条件/湍流强度/输出功率Key words
wind turbine/roof flow field/inflow conditions/turbulence intensity/output power分类
能源科技引用本文复制引用
景坤瑶,汪建文,张立茹,贺玲丽..不同入流条件对屋顶风力机输出功率的预测[J].排灌机械工程学报,2017,35(4):340-344,5.基金项目
内蒙古自然科学基金重大资助项目(2016ZD04) （2016ZD04）
内蒙古工业大学科学研究项目(ZD201407,ZD201404) （ZD201407,ZD201404）
