Field Measurements on fluctuating wind characteristic near ground during typhoon &lsquo;HAIKUI&rsquo;

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (11) : 199-205.

Field Measurements on fluctuating wind characteristic near ground during typhoon ‘HAIKUI’

WANG Xu1,3, HUANG Chao1, HUANG Peng2* , LIU Haiming1, ZHOU Haigen2

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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

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WANG Xu1,3, HUANG Chao1, HUANG Peng2*,LIU Haiming1, ZHOU Haigen2. Field Measurements on fluctuating wind characteristic near ground during typhoon ‘HAIKUI’[J]. Journal of Vibration and Shock, 2017, 36(11): 199-205

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