张伯寅, 桑建国, 吴国昌. 建筑群环境风场的特性及模拟-----风环境模拟研究之一[J]. 力学与实践, 2004, 26(3). DOI: 10.6052/1000-0992-2004-176
引用本文: 张伯寅, 桑建国, 吴国昌. 建筑群环境风场的特性及模拟-----风环境模拟研究之一[J]. 力学与实践, 2004, 26(3). DOI: 10.6052/1000-0992-2004-176
APPLICATIONS OF AERODYNAMICS IN THE ARCHITECTURAL WIND ENVIRONMENT------SIMULATION STUDIES OF WIND ENVIRONMENT I[J]. MECHANICS IN ENGINEERING, 2004, 26(3). DOI: 10.6052/1000-0992-2004-176
Citation: APPLICATIONS OF AERODYNAMICS IN THE ARCHITECTURAL WIND ENVIRONMENT------SIMULATION STUDIES OF WIND ENVIRONMENT I[J]. MECHANICS IN ENGINEERING, 2004, 26(3). DOI: 10.6052/1000-0992-2004-176

建筑群环境风场的特性及模拟-----风环境模拟研究之一

APPLICATIONS OF AERODYNAMICS IN THE ARCHITECTURAL WIND ENVIRONMENT------SIMULATION STUDIES OF WIND ENVIRONMENT I

  • 摘要: 建筑风环境是研究建筑物与城市风场相互作用的一门空气动力学与大气科学的交叉学科. 将空气动力学惯用的风洞实验和流场显示研究手段,直接用于城市大气边界层和建筑物周边流场变化规律的研究. 充分利用数值计算的广度和深度与风洞实验相结合,相互验证、相互补充. 弥补了目前实验手段尚无法实现的研究. 本文以北京商务中心区(CBD)为研究背景,论述了建筑风环境中大气边界层的模拟和具体建筑物风场的显示方法,并与数值计算进行对比,取得了非常一致的结果. 为该地区的城市规划和环境保护,提出了科学依据.

     

    Abstract: Architectural wind environment study is a crossdiscipline between aerodynamics and atmospheric science focusing on theinteraction of architectures with the urban wind fields. In the study, windtunnel tests and flow visualization approaches, as consistently used inaerodynamics, are applied for the investigation of the wind field distributionand variation in urban atmospheric boundary layers and around thearchitectures. The numerical computations andwind tunnel tests are mutually complementary and their combination canimprove the experimental studies.In the present paper, the wind environment of Beijing Central BusinessDistrict (CBD) is studied. The simulation of the urban atmospheric boundarylayer in the wind tunnel and the method of the wind field visualization aroundarchitectures are described in detail. The experimental results are comparedwith numerical computations and they are in agreement. Some useful suggestions inthe study are made for the improvement of urban planning and urbanwind environment in CBD area.

     

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