基于实测风场和CFD的城市建筑风能资源模拟评估  

Application of field observation combined with CFD simulation method in evaluation of building wind energy

作　　者：许晖[1,2] 张亮[1] 

机构地区：[1]南京大学大气科学学院,江苏南京210046 [2]吉林省气象信息网络中心,吉林长春130062

出　　处：《气象与环境学报》2016年第6期166-173,共8页Journal of Meteorology and Environment

基　　金：中国气象局气候变化专项(CCSF201232和CCSF201317)资助

摘　　要：利用2012年吉林省气象局两栋办公楼之间的风场观测资料,与2012年长春气象站风场的观测数据进行了对比分析。结果表明:城市两栋楼办公楼之间通道处存在狭管效应,对风具有汇集作用。利用CFD技术(Fluent软件)对两栋办公楼周围风场进行模拟,结果表明Fluent模拟的风场与实测风场基本吻合。由模拟风场计算的年平均风功率密度可知,办公楼中间风口顶部40 m高度为建筑物周围风速最大的区域,年平均风功率密度为139.0 W·m-2,具备一定风能资源的可开发性,同时证明了利用实测风场结合CFD模拟风场计算已建成建筑物周围的风能资源具有一定的可行性。The wind field between the two office buildings of Jilin Meteorological Office in 2012 was measured and the results were compared with the wind data observed at a meteorological station in Changchun. The results show that a tunneling effect exists between the two office buildings, which results in the convergence of wind. The wind field between the two office buildings simulated using the CFD technology （the Fluent software） is generally con- sistent with the real wind field. The annual average wind power density calculated from the simulated wind field is 139.0 W.m-2 ,with the largest wind speed area occurring at a 40 m height around the top wind exit between the two office buildings, which means the probability to explore wind power at this observational site. Meanwhile, it is feasible to evaluate wind power around buildings using both of real observations and CFD simulation.

关 键 词：建筑一体化 CFD 风能资源 开发 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]