建筑立体绿化对室外热环境的影响分析  

Analysis on the influence of building vertical greening to the outdoor thermal environment

作　　者：丁云飞[1] 王元明[1] 苏浩[1] 王剑平[1] 

机构地区：[1]广州大学土木工程学院/广州大学广东省建筑节能与应用技术重点实验室,广东广州510006

出　　处：《广州大学学报（自然科学版）》2015年第4期53-57,2,共5页Journal of Guangzhou University:Natural Science Edition

基　　金：广东省重大科技专项资金资助项目(2013A011404005)

摘　　要：以广州某高校图书馆为例,利用CFD模拟方法对建筑立体绿化对室外热环境的影响进行模拟分析,结果显示：在夏季典型计算日,与普通建筑相比,采用立体绿化,建筑前广场、草地、河流上方1.5m处温度分别降低了0.5～2.5℃、0.5～2.0℃、0.5～1.5℃,屋面温度降低了8℃左右.采用立体绿化不仅有效改善了室外环境,减缓了热岛效应,而且降低了室外和屋面温度,提高了屋面隔热性能,达到了节能的目的.Taking a college library in Guangzhou as an example,the influence of building vertical greening to outdoor thermal environment was studied using CFD method,and the results showed the temperature on 1 .5 m height of building frontal square,the grassland and the river,reduced about 0.5 ~2.5 ℃,0.5 ~2.0 ℃ and 0.5~1 .5 ℃ respectively,and about 8 ℃ on the roofing surface on the summer typical calculation date compared before with after using the vertical greening.Vertical greening not only improves effectively the outdoor environ-ment,but also reduces the heat island effect,and outdoor and roofing temperature,and raises the roof insula-tion performance,and achieves the purpose of energy saving.

关 键 词：CFD模拟 立体绿化 热环境 热岛效应 

分 类 号：TU86[建筑科学] TU119