黃湘　王志峰　宮博　吳治永　白鳳武

摘 要：綜合現(xiàn)場(chǎng)實(shí)測(cè)、風(fēng)洞實(shí)驗(yàn)和數(shù)值有限元模擬方法，開展了電站聚光鏡場(chǎng)和近地面風(fēng)環(huán)境相互耦合作用機(jī)理研究。進(jìn)行了聚光器場(chǎng)的風(fēng)場(chǎng)實(shí)時(shí)監(jiān)測(cè)，分析獲得鏡場(chǎng)近地面的風(fēng)速剖面、湍流度剖面、湍流強(qiáng)度、湍流積分尺度、湍流風(fēng)速譜和峰值因子等參數(shù)，總結(jié)聚光器場(chǎng)的強(qiáng)季風(fēng)場(chǎng)的規(guī)律和特征。進(jìn)行了聚光器風(fēng)荷載邊界條件的原型實(shí)測(cè)和風(fēng)洞實(shí)驗(yàn)，獲得強(qiáng)季風(fēng)作用下的聚光器脈動(dòng)風(fēng)壓分布規(guī)律和特征，獲得脈動(dòng)風(fēng)壓功率譜密度，進(jìn)而獲得聚光器的風(fēng)荷載邊界條件。

關(guān)鍵詞：聚光鏡場(chǎng) 風(fēng)場(chǎng) 現(xiàn)場(chǎng)實(shí)測(cè) 風(fēng)洞實(shí)驗(yàn) 數(shù)值有限元方法

Abstract：Field measurements， wind tunnel experiments and numerical finite element method are applied comprehensively to analyze coupling mechanism of concentrating solar collector field and wind flow around it. Atmospheric boundary layer wind flow around the field is monitored and analyzed. Wind characteristics parameters are presented including turbulence intensity， gust factor， wind speed profile and turbulence intensity profile. Wind loads on concentrating solar collectors are tested by field measurements， wind tunnel experiments and numerical finite element method. Wind load coefficients of the collectors are presented as a function of pitch angles. Characteristics of wind pressure distribution and pressure spectra are analyzed including wind pressure contours and normalized power spectra of fluctuating pressures and wind speed.

Key Words：Concentrating solar collector field；Wind flow；Field measurements；Wind tunnel experiment；Numerical finite element method

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