台风“海葵”近地风脉动特性实测研究

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摘要基于10、20和30m高度处台风“海葵”影响下的上海浦东地区近地风现场实测数据，分析了阵风因子、湍流度、峰值因子以及湍流积分尺度的变化规律。结果表明，各向阵风因子随高度和风速的增大而减小；不同高度处各向湍流度随风速的增加而减小；峰值因子基本上随平均风速的增大略有减小但是变化不甚明显且离散性较大，观测高度对峰值因子随时距变化的影响较小；各向的湍流积分尺度均有随平均风速的增大而增大的趋势，并且随着平均风速的增大，其离散度也略有增大，不同高度处纵向和横向湍流积分尺度均随时距的增大而增大。

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	王旭1
	3
	黄超1
	黄鹏2*
	刘海明1
	周海根2

关键词 ：台风&ldquo, 海葵&rdquo, ；阵风因子；湍流度；峰值因子；积分尺度

Abstract：Based on field measured data of near-ground at the heights of 10m, 20m and 30m affected by typhoon HAIKUI in Shanghai Pudong District, the variations of gust factor, turbulence intensity, the peak factor and turbulence integral scale were collected and analyzed. The results showed that all gust factors decreased with the increase of height and wind speed; all turbulence intensities at different heights decreased with wind speed; the peak factor increased substantially with the mean wind speed but the change wasn’t obvious and its discreteness was larger, and the observed height had smaller effect on the change of peak factor with time intervals; all turbulence integral scales had increasing trend and its discreteness also slightly increased with the mean wind speed, and longitudinal and lateral turbulence integral scales at different heights increased with time interval.

Key words： Typhoon ‘HAIKUI’ gust factor turbulence intensity peak factor turbulence integral scale

收稿日期: 2015-12-17 出版日期: 2017-05-25

引用本文:

王旭1, 3，黄超1，黄鹏2*，刘海明1，周海根2. 台风“海葵”近地风脉动特性实测研究[J]. 振动与冲击, 2017, 36(11): 199-205.
WANG Xu1,3, HUANG Chao1, HUANG Peng2*,LIU Haiming1, ZHOU Haigen2. Field Measurements on fluctuating wind characteristic near ground during typhoon ‘HAIKUI’. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(11): 199-205.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2017/V36/I11/199

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