|本期目录/Table of Contents|

[1]阎启,谢强,李杰.风场长期观测与数据分析[J].建筑科学与工程学报,2009,26(01):37-42.
 YAN Qi,XIE Qiang,LI Jie.Long-term Observation and Data Analysis of Wind Field[J].Journal of Architecture and Civil Engineering,2009,26(01):37-42.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年01期
页码:
37-42
栏目:
出版日期:
2009-03-20

文章信息/Info

Title:
Long-term Observation and Data Analysis of Wind Field
作者:
阎启1,谢强1,2,李杰1,2
1.同济大学建筑工程系,上海200092;2.同济大学土木工程防灾国家重点实验室,上海200092
Author(s):
YAN Qi1, XIE Qiang1,2, LI Jie1,2
1. Department of Building Engineering, Tongji University, Shanghai 200092, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
关键词:
风场 长期观测 数据分析 风玫瑰图 湍流结构 风速谱 剪切波速
Keywords:
wind field long-term observation data analysis wind rose plot structure of turbulence wind velocity spectrum shear wave velocity
分类号:
TU973.32
DOI:
-
文献标志码:
A
摘要:
为了进行风场现场实测研究,对1组风速采集设备的风场长期观测结果进行了分析。基于现场实测数据,得到了10 m和20 m高度处10 min平均风速年最大值的风玫瑰图; 选取了总时长达75 h的18组大风记录,计算了湍流强度、风剖面参数、剪切波速; 拟合了风速谱并与Von Karman谱、欧洲规范谱进行了比较; 统计了主风方向湍流积分尺度; 对风场的垂直相关性进行了分析。结果表明:实测湍流强度较经验值略大; 风剖面参数的离散性大,而且均值与荷载规范取值存在一定差异; 实测大风记录拟合风速谱与Von Karman谱和欧洲规范谱吻合良好。
Abstract:
In order to study natural wind property, long-term observation results of wind field were analyzed. Based on the site observation, wind rose plots of annual maximum 10 min mean wind velocity at 10 m and 20 mwere given. 18 series of record of strong wind(75 hours totally)were selected to calculate turbulence intensity, wind velocity profile parameters and shear wavevelocity. Wind velocity spectrum was calculated and compared with Von Karman spectrum and Eurocode spectrum. The statistics of turbulenceintegral scale in primary wind direction was obtained and vertical correlation of wind field was analyzed. The results show that the measured turbulence intensity is a little higher than empirical value. Wind velocity profile parameters are scattered and the mean values differ from values recommended by load code. The measured wind velocity spectrum matches well with Von Karman spectrum and Eurocode spectrum.

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备注/Memo

备注/Memo:
收稿日期:2009-01-06
基金项目:国家自然科学基金创新研究群体科学基金项目(50621062); 国家自然科学基金项目(50778135); 国家自然科学基金项目(50508026)
作者简介:阎 启(1982-),男,甘肃兰州人,工学博士研究生,E-mail:sevenyan_tj@hotmail.com。
更新日期/Last Update: 2009-03-20