884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

    顧  磊¹，齊宏拓¹，劉紅軍¹，傅學(xué)怡²
    (1 哈爾濱工業(yè)大學(xué)深圳研究生院，深圳518055; 2 中建國(guó)際設(shè)計(jì)顧問(wèn)有限公司，深圳518033)

[摘要] 奧林匹克公園網(wǎng)球中心為2008年北京奧運(yùn)會(huì)網(wǎng)球比賽場(chǎng)所，其中10 000座中心賽場(chǎng)體型為花瓣型，12個(gè)結(jié)構(gòu)單元（花瓣）間有較大開(kāi)洞。開(kāi)洞體型對(duì)風(fēng)荷載非常敏感，迎風(fēng)看臺(tái)錐面的導(dǎo)風(fēng)作用以及大開(kāi)洞的穿透性，使得網(wǎng)球中心賽場(chǎng)的看臺(tái)、罩棚的風(fēng)壓分布以及場(chǎng)內(nèi)風(fēng)環(huán)境明顯不同于常規(guī)體育場(chǎng)。本文采用CFD方法對(duì)該結(jié)構(gòu)進(jìn)行了風(fēng)荷載和風(fēng)環(huán)境的數(shù)值模擬分析，風(fēng)壓系數(shù)與風(fēng)洞試驗(yàn)吻合較好。
[關(guān)鍵詞] 奧運(yùn)網(wǎng)球中心；計(jì)算流體力學(xué)；風(fēng)場(chǎng)數(shù)值模擬；體育場(chǎng)風(fēng)環(huán)境

    Numerical Simulation on Wind Load Characteristics for Olympics Green Tennis Centre
    Gu Lei¹, Qi Hongtuo¹, Liu Hongjun¹, Fu Xueyi²
    (1 Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China; 2 China Construction Design Intemational,  Shenzhen 518033,  China)

Abstract: Olympics Creen tennis centre will be the 2008 0lympic Games venue for tennis competition. The flower petal shaped center court, which is composed by 12 flower petal shape units, forms 12 holes between units. The special shape makes the arena sensitive to wind loads. The wind guidance function of the upwind cone - shape stand and the wind draft of the big holes make wind environment different from other common arenas. Computational Fluid Dynamics( CFD)  method is carried out to simulate wind loads acting on the special shape arena. Comparisons between the results from the present computation and the wind tunnel test were performed, which indicate that the precision of CFD technique is enough to predict the mean wind pressure distribution on this special building. As comparison the wind distribution of a closed shape arena is also considered.  Besides, the influence of different roof slopes and wind speed ratios are discussed to appraise the wind performance during tennis competition.
Keywords: Olympics Green tennis centre, CFD; wind numerical simulation; arena wind environment