拐角优化措施对两个正方形建筑之间的干扰效应的影响.
Te Zhang1, Fanghui Li2, Jiahong Fan1
1School of Civil Engineering, Heilongjiang University, Harbin, 150080, China.
Scientific reports
|February 14, 2025
概括
空气动力学的角落处理显著改变了双胞胎建筑之间的风引起的干扰效应. 圆角减少风压屏蔽,而角放大效果,影响结构设计.
科学领域:
- 流体动力学 流体动力学
- 风力工程是风力工程.
- 结构工程是结构工程.
背景情况:
- 高层双重建筑体验风引起的干扰效应.
- 空气动力学优化可以减轻这些影响.
- 了解角形几何学的作用对于建筑设计至关重要.
研究的目的:
- 调查空气动力学角度优化对双胞胎建筑之间风引起的干扰效应的影响.
- 在不同的间距比下分析风载荷特征和流量机制.
- 为了比较角,圆角和角处理的有效性.
主要方法:
- 大模拟 (LES) 用于模拟风载荷特征.
- 模拟与实验数据和之前的研究进行了验证.
- 分析了10个间距比率 (B/L从1.2到8) 和3个角处理 (形,圆形,深陷) 在Re=22,000时.
主要成果:
- 圆角显示出最显著的风压屏蔽效应.
- 角显示出最强烈的风压放大效应.
- 入的角落显示了在关键距离处的双模式风压分布.
结论:
- 角形几何是控制风干扰效应的一个关键因素.
- 特定的角落处理为减轻风力负载提供了明显的优势.
- 研究结果为高层建筑集群的空气动力学设计策略提供了信息.
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