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廈門海岸地區(qū)150m高空臺(tái)風(fēng)風(fēng)場(chǎng)特性實(shí)測(cè)研究*
朱云輝1,孫富學(xué)2,姜碩2,史文海2,3,張傳雄1,張茂雨1,趙喆斐3
摘 要

(1 溫州大學(xué)甌江學(xué)院, 溫州 325035; 2 溫州大學(xué)建筑工程學(xué)院, 溫州 325035;3 皇家墨爾本理工大學(xué),墨爾本 3030)

[摘要]基于安裝在廈門海岸地區(qū)超高層建筑頂部的測(cè)風(fēng)基站(150m),對(duì)2010年前后四次臺(tái)風(fēng)歷程的風(fēng)場(chǎng)數(shù)據(jù)進(jìn)行實(shí)測(cè)。基于實(shí)測(cè)數(shù)據(jù),研究分析了表征臺(tái)風(fēng)特征的平均風(fēng)速、平均風(fēng)向角、湍流度、陣風(fēng)因子、湍流積分尺度、功率譜等風(fēng)場(chǎng)參數(shù)。結(jié)果表明:實(shí)測(cè)風(fēng)場(chǎng)的湍流度及陣風(fēng)因子隨平均風(fēng)速的增大平穩(wěn)變化,湍流度及陣風(fēng)因子隨平均風(fēng)速增大而減小;陣風(fēng)因子隨湍流度的增大而增大,并符合線性關(guān)系;擬合的湍流積分尺度均相對(duì)于規(guī)范值偏小;實(shí)測(cè)順風(fēng)向脈動(dòng)風(fēng)速功率譜均與Von Karman譜在低中頻吻合較好,在高頻處Von Karman譜偏小。

[關(guān)鍵詞]廈門海岸地區(qū); 臺(tái)風(fēng)風(fēng)場(chǎng); 端流度; 陣風(fēng)因子; 湍流積分尺度

中圖分類號(hào):TU973-2+13, TU317+-2文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2020)16-0114-05

 

Research on  measurements of typhoon wind field characteristics at 150m altitude in Xiamen coastal area

ZHU Yunhui1, SUN Fuxue2, JIANG Shuo2, SHI Wenhai2,3, ZHANG Chuanxiong1, ZHANG Maoyu1, ZHAO Zhefei3

(1 Oujiang College, Wenzhou University, Wenzhou 325035, China; 2 College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, China; 3 RMIT University, Melbourne 3030, Australia)

Abstract:Based on the wind measurement base station (150m) installed on the top of the super high-rise building in the Xiamen coastal area, the wind field data of the four typhoon history around 2010 was measured. From measured data, the wind field parameters such as the average wind speed, average wind direction angle, turbulence scale, gust factor, turbulence integral scale, power spectrum and other parameters that characterize the typhoon were analyzed. The results show that the measured turbulence scale and gust factor of the wind field change smoothly with the increase of the average wind speed, and the turbulence scale and gust factor decrease with the increase of the average wind speed. The gust factor increases with the increase of the turbulence scale, and is in a linear relationship. The fitted turbulence integral scale is smaller than the normative value. The measured longitudinal power spectrum of pulsating wind speed along the downwind direction is consistency with the Von Karman spectrum within low and intermediate frequencies, and the Von Karman spectrum is relatively small within high frequencies.

Keywords:Xiamen coastal area; typhoon wind field; turbulence scale; gust factor; turbulence integral scale

 

*國(guó)家自然科學(xué)基金(51478366, 51678455, 51578422),浙江省自然科學(xué)基金(LY14E080018)。

 

作者簡(jiǎn)介:朱云輝,碩士,講師,Email:zhu-yunhui@163.com;通訊作者:孫富學(xué),博士,副教授, Email: sunfuxue@163.com。

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