基于CFD的某高层建筑室内自然通风的数值模拟  

Numerical simulation of indoor natural ventilation in a high-rise building based on CFD

作　　者：徐俊 穆正勇 殷子文 许江豪 Xu Jun;Mu Zhengyong;Yin Ziwen;Xu Jianghao(Hefei City College,Hefei 238076,China;State Key Laboratory of Fire Science,University of Science&Technology of China,Hefei 230031,China;School of Environmental&Energy Engineering,Anhui Jianzhu University,Hefei 230601,China)

机构地区：[1]合肥城市学院,合肥238076 [2]中国科学技术大学火灾科学国家重点实验室,合肥230031 [3]安徽建筑大学环境科学与能源工程学院,合肥230601

出　　处：《黑龙江科技大学学报》2022年第4期459-463,共5页Journal of Heilongjiang University of Science And Technology

基　　金：安徽省大学生创新创业训练计划项目(S202113615001)。

摘　　要：为研究不同开窗面积对高层住宅室内自然通风的影响,利用CFD软件对合肥地区某高层建筑顶楼主卧的通风情况进行数值模拟,研究开窗面积对室内风速及平均空气龄等参数的影响。结果表明:高层住宅卧室内的平均风速随着开窗面积的增大而增大,平均空气龄随着开窗面积的增大而减小;因一般高层住宅建筑卧室面积普遍较小,且无遮挡,室外风速相对较高,高层住宅室内窗户开启1/9及以上时,射流中心部位风速0.8 m/s以上,平均空气龄小于42 s,自然通风均满足室内通风要求。This paper aims to study the effect of different window opening areas on the indoor natural ventilation of high-rise residential buildings including indoor wind speed and average air age.The results show that the average wind speed in the bedroom of high-rise residential buildings increases with the increase of the window opening area,and the average air age decreases with the increase of the window opening area.As most high-rise residential buildings are not covered and the bedroom area is mostly small,the outdoor wind speed is relatively high,and when the indoor windows of high-rise residential buildings are opened up to 1/9 or more,the wind speed at the center of the jet is more than 0.8 m/s,and the average air age is less than 42 s,and thus,natural ventilation meets the indoor ventilation requirements.

关 键 词：高层住宅 自然通风 空气龄 

分 类 号：TU834.1[建筑科学—供热、供燃气、通风及空调工程]