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雷暴风下高层建筑风场干扰效应

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摘要 基于k-ε湍流模型,应用CFD技术分别对雷暴风风场下高层建筑单体和双塔对风场产生的干扰效应进行研究,高层建筑模型采用CAARC标准高层建筑模型。首先通过对比雷暴风风场中单体高层建筑位于不同径向位置时,建筑物附近的风场,结果发现建筑附近的风场较为复杂,建筑位于滞留区内部和外部时差异较大。通过分析边界层风场和雷暴风风场下两栋建筑的风场分布,首先验证了狭道风效应的存在。对两种风场下的狭道风效应进行对比,结果显示,边界层风场下的狭道风效应引起的风速增大幅度较大,但是雷暴风风场的影响范围较大,紊流现象更为复杂。
出处 《低温建筑技术》 2014年第3期61-64,共4页 Low Temperature Architecture Technology
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