摘要
风环境模拟在城市规划、建筑单体设计中扮演着重要的角色,尤其在绿色建筑评价中是重要的得分项。模拟时不考虑周边建筑对目标建筑的影响,将典型工况下风速梯度公式作为任何项目的边界条件,与实际风环境相差较大。风环境模拟需要将大尺度规划与小尺度单体设计紧密结合,形成一个城区级尺度的风环境模拟周边建筑,使模拟结果更趋真实。通过介绍"粗细网格"的模拟方法,在提高计算精度条件下解决城区级边界条件带来的时间、设备要求及人力成本大幅上升的问题,为城市规划、建筑设计的风模拟工作提供参考。
Wind environment simulation plays an important role in urban planning, architecturaldesign, especially as an important score item in the evaluation of green building. Without considerationupon the impact of surrounding buildings on the target, the wind speed gradient formula under typicalconditions is taken as the boundary condition of any project, resulting in large difference from the actualwind environment. The wind environment simulation needs combining large -scale urban planning andsmall - scale building design, forming wind simulation based on urban scale, so that the simulation resultsmore close to the real. The paper describes the large - small - grid simulation method to solve issues ofsignificant increasing time, equipment requirements and labor costs by improving the accuracy ofcalculation, providing reference for wind simulation of urban planning and architecture design.
出处
《建筑节能》
CAS
2017年第5期92-96,共5页
BUILDING ENERGY EFFICIENCY
基金
天津市科技计划项目(14ZCDGSF00123)
关键词
风环境
周边建筑
粗细网格
数值模拟
wind environment
surrounding buildings
large - small - grid
numerical simulation
