...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of aerospace engineering >Improved Experimental Simulation of Wind Characteristics around Tall Buildings
【24h】

Improved Experimental Simulation of Wind Characteristics around Tall Buildings

机译：高层建筑周围风特性的改进实验模拟

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

A wind-tunnel study has been carried out to investigate the effects of the barrier wall and surface roughness on the simulated atmospheric boundary-layer (ABL) flow generated using the Counihan method, (i.e., the castellated barrier wall, vortex generators, and surface roughness elements). Experimental results indicate that changing the basic barrier height does not influence the mean-velocity profiles. However, turbulence intensity and absolute values of the Reynolds stress increase with an increase in the barrier height, and simultaneously the integral length scales of turbulence decrease. Variations in the height of the barrier castellation influence the simulated ABL flow similarly to the changes in the basic barrier height. Empirical relations were derived to quantify effects of the surface roughness height on the simulated ABL flows. Increasing the height of surface roughness elements results in a larger velocity defect and stronger turbulence in the near-ground region.
机译：进行了风洞研究，以研究屏障壁和表面粗糙度对使用Counihan方法生成的模拟大气边界层（ABL）流动的影响（即，城堡式屏障壁，涡流发生器和表面粗糙度元素）。实验结果表明，改变基本障碍物高度不会影响平均速度剖面。但是，湍流强度和雷诺应力的绝对值会随着势垒高度的增加而增加，同时湍流的整体长度尺度会降低。障碍物城堡形高度的变化与基本障碍物高度的变化类似，对模拟的ABL流量产生影响。得出了经验关系，以量化表面粗糙度高度对模拟ABL流的影响。增加表面粗糙度元件的高度会导致在近地面区域出现更大的速度缺陷和更强的湍流。

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