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【提要】 建立了金茂大廈三維數(shù)值模擬模型，模擬得到的大廈表面上有代表性點的平均風(fēng)壓系數(shù)與風(fēng)洞試驗結(jié)果基本吻合。采用雷諾應(yīng)力模型和SST物理模型，重點研究了周圍兩幢超高層建筑對金茂大廈靜力風(fēng)干擾的影響，包括底部總剪力、總彎矩(或扭矩)和有代表性點的平均風(fēng)壓系數(shù)，最后結(jié)合金茂大廈周圍風(fēng)流動的規(guī)律，分析了風(fēng)環(huán)境對金茂大廈干擾影響的原因。
【關(guān)鍵詞】  數(shù)值模擬  風(fēng)洞試驗  平均風(fēng)壓  風(fēng)環(huán)境
Numerical Windtunnel Simulation of Mean Pressure on Jinmao Mansion and the Interference of Wind Environment/Zhou Dawei1,Huang Bencai2,Xu Zaigen2,Zheng Benhui2,Wang Guojian3(1 Shanghai Xiandai Architectural Design Group Jianshe Gongcheng Co.,Ltd.,Shanghai 200041,China;2 Tongji University,Shanghai 200092,China;3 Shanghai Xiandai Architectural Design Group Co.,Ltd.,Shanghai 200041,China)
Abstract:A precise 3D numerical model of Jinmao mansion is set up.The mean wind pressure coefficients of the representative points on the wall of Jinmao mansion from the simulation results agree with the results of the windtunnel experiment.Then using the Reynolds stress model and SST physical model,the key research is on the aerodynamic interference of two highrise buildings near Jinmao mansion,including the total shearing force at the bottom,the total moment(or torsion)and the mean wind pressure coefficients of the representative points.Finally,the reasons that Jinmao mansion is interfered are further analysed according to the form by which wind flows through Jinmao mansion.
Keywords:numerical simulation;windtunnel experiment;mean pressure;wind environment