湖南大学学报（自然科学版）Issue(1)：37-44,8.
单山和双山风场特征的 CFD 数值模拟
Investigation of the Wind Field Characteristics on Isolated Hill and Two Adjacent Hills Using CFD Numerical Simulation
摘要
Abstract
CFD numerical simulation method was employed to study the wind field characteristics of three-dimensional hills under isolated hill and two adjacent hills condition.The influence of the calculation model surface roughness on the wind field was studied.The wind fields on isolated hill with different slopes were calculated.The wind fields of two adjacent hills in left-right arrangement were also investiga-ted,and the influence of the hill slope,wind azimuth and hill distance on the wind field was studied.The results show that,if the model surface roughness increases,the speedup effect of half hill height above the top of the hill decreases and the height of vortex region increases.The speedup effects on the cross-wind plane of an isolated hill are more significant than those on the along-wind plane,and the most unfavorable position ranges from the half hill height to the top of the hill on the cross-wind plane.When two adjacent hills are in left-right arrangement with zero distance,the speedup ratios on the front hill are larger than those on the rear hill under yawed azimuth,and the speedup ratio,when wind blows perpendicularly to the two hills,is between these two data.关键词
CFD 模拟/平均风速/风场计算/三维山体/峡谷风效应Key words
CFD simulation/mean wind velocity/wind field calculation/three dimensional hill/wind tunneling effect分类
建筑与水利引用本文复制引用
沈国辉,姚旦,楼文娟,邢月龙,潘峰,郭勇..单山和双山风场特征的 CFD 数值模拟[J].湖南大学学报（自然科学版）,2016,(1):37-44,8.基金项目
国家自然科学基金资助项目（51178425），National Natural Science Foundation of China （）
