...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Building and Environment >Wind velocity changes along the passage between two angled walls - CFD simulations and full-scale measurements
【24h】

Wind velocity changes along the passage between two angled walls - CFD simulations and full-scale measurements

机译：风速沿两个角度墙 - CFD仿真和全尺寸测量之间的通道变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a study on wind flow in the passage between the walls of a bell tower. The bell tower, raised above the church roof, consisted of two walls with the horizontal angle between them equal to 100 degrees. Computational fluid dynamics (CFD) simulations were performed for 3D models of the entire church structure. Two opposite inflow wind directions, which corresponded to diverging and converging wall layouts, were used. Amplification factors of the wind velocity along the passage were calculated. Additionally, full-scale measurements were conducted using three ultrasonic anemometers and three cup anemometers placed along the horizontal centreline of the bell tower walls. The CFD results were validated with the use of in-situ data. Wind velocity amplification or reduction observed in CFD simulations and full-scale measurements were of the same order. The biggest amplification of the wind velocity behind the passage was obtained for diverging walls, whereas the biggest reduction occurred in the front of the contraction for converging walls. The influence of geometry simplification and changes in the description of the wind flow were also analysed. Considerable differences in CFD simulations results were caused by small changes in the geometry of the model rather than by changes in the terrain category, including the roughness of the terrain.
机译：本文介绍了钟楼墙壁之间的风流的研究。在教堂屋顶上方举起的钟楼，由两个墙壁组成，它们之间的水平角度等于100度。对整个教堂结构的3D模型进行了计算流体动力学（CFD）模拟。使用与发散和融合墙面布局相​​对应的两个相反的流入风向。计算沿着通道的风速的放大因子。另外，使用三个超声波风管和沿着钟塔墙的水平中心线放置的三个杯形风速器进行全尺寸测量。使用原位数据验证了CFD结果。在CFD模拟中观察到的风速放大或减少和满量程测量的顺序是相同的。为发散墙壁获得通道后面的风速的最大放大，而在收敛墙壁的收缩前发生最大的减少。还分析了几何简化和变化对风流描述的影响。 CFD模拟结果的相当大的差异是由模型的几何形状的小变化引起，而不是通过地形类别的变化，包括地形的粗糙度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号