摘要
基于fluent6.3数值模拟软件,系统研究了4种湍流度、4种积分尺度、5个风向角、4种长宽比、8种开洞位置等条件下,洞口设置对于平均风压的影响。分析发现:洞口使迎风面和背风面洞口附近的测点风压有所减小,而远离洞口的左右测点风压却有所增加;较小的湍流度和积分尺度流场中的模型受开洞影响更大;宽长比越大的模型受影响测点越多,且影响幅度略有增加;洞口使建筑物整体静风荷载减小的主要原因是洞口的存在使受风面积减小所致。
Many more rectangular cross-section high-rise buildings with openings have been built recently,and the openings have certain effect on wind load,but relevant research is not perfect.Based on fluent numerical simulation software,a systematic research on the effect of openings was carried out,under different conditions including four kinds of turbulence and integral scales,five wind angles,four kinds of aspect ratio and eight kinds of opening conditions.Through the analysis of surface pressure contour and wind pressure coefficient of measured points,some useful conclusions were drawn,which provides a reference for further research.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2012年第5期122-126,共5页
Journal of Wuhan University of Technology
关键词
开洞高层建筑
平均风压系数
数值模拟
high-rise building with openings
mean wind pressure coefficient
numerical simulation
