Effect of Window Opening Percentage on the Air Flow Rate of Wind-Driven Natural Ventilation Rooms

被引：2
|
作者：
王勇 [1 ]
钟珂 [1 ]
张宁波 [1 ]
亢燕铭 [1 ]
机构：
[1] School of Environmental Science and Engineering,Donghua University
来源：
Journal of Donghua University(English Edition) | 2012年 / 29卷 / 06期
基金：
中国国家自然科学基金;
关键词：
natural ventilation; window opening percentage (WOP); correction factor; numerical simulation;
D O I：
10.19884/j.1672-5220.2012.06.003
中图分类号：
TU834.1 [自然通风];
学科分类号：
081404 ;
摘要：
According to the investigations of window opening percentage (WOP) of Shanghai in 2011, the WOP varies significantly from season to season and thus affects the air flow rate of natural ventilation rooms. A three-dimensional computional fluid dynamic(CFD) model was applied to simulating the flow fields in a street canyon under different wind speed and WOP. The numerical simulations show that WOP has a significant influence on the static pressure distribution of the downwind building. Therefore, a correction factor k can be used for calculating the flow rate of wind-driven natural ventilation. The results show that k ranges from 0.43 to 0.49 when WOP is 4.44%; when WOP increases to 9.78%, the correction factor k lies in 0.32 and 0.36.
引用
收藏
页码：465 / 469
页数：5
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