首页|垂直绿化热环境与风环境作用耦合计算方法研究

垂直绿化热环境与风环境作用耦合计算方法研究

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基于垂直攀援绿化在高密度城市的应用与发展,测试其对于湿热地区半户外空间的热环境与热舒适调节作用.首先对湿热地区的攀援绿化案例进行了夏季典型高温日实测,然后结合计算流体动力学(CFD)工具进行模拟校验.进而,耦合CFD与Ladybug + Honeybee工具对典型架空过渡空间与攀援绿化的组合工况进行了热环境与热舒适模拟测试.得出:1)实测显示攀援绿化测点比无绿化测点平均温度降低0.06～0.53℃,黑球温度降低 0.37～1.73℃,风速降低 0～0.18 m/s,平均辐射温度(MRT)降低 0.58～2.74℃,生理等效温度(PET)降低 0.27～1.43℃;2)架空层 CFD 模拟结果显示,除了 FG-1 模型,其他各模型温度均稍有降低,降低幅度约为 0.1～0.3℃;3)FG-2、FG-3 模型风速降幅约为 1.3 m/s,DG 系列模型风速降幅约为0.8 m/s;4)耦合模拟结果显示,FG-2、FG-3、DG与 WG系列模型的 PET值降幅约为 0.8～1.1℃,进而,FG-2、FG-3、DG系列对空间整体生理等效温度调节较好,为较优的布局选项.
Research on Couple Simulation Method on Effects of Thermal and Wind Environment of Vertical Climbing Green Facades
Based on the application and development of vertical climbing green facde in high-density cities,the vertical climbing green facades on thermal and wind environment in hot-humid climate areas.Firstly,field measurements were conducted to record the thermal indices around a case of climbing green facade in typical extreme hot summer days in hot-humid climate areas.Secondly,a validation was conducted with a CFD simulation method with the software.Then,the combination condition of typical overhead transition space and climbing green facade was simulated and tested for human thermal comfort evaluation coupled with CFD and Ladybug+Honeybee tools.The results showed that:1)field measurements results revealed that the temperature,globe temperature(Tg),and wind velocity(Va)of the shaded area was reduced by 0.06-0.53℃,0.37-1.73℃,and 0-0.18 m/s compared to the unshaded area,relpectively.The mean radiant temperature(MRT)and physiological equivalent temperature(PET)were reduced by 0.58-2.74℃and 0.27-1.43℃,respectively;2)CFD simulation results revealed different greening models reduced the average temperature by 0.1-0.3℃except the model FG-1;3)the wind velocity of model FG-2 and FG-3 reduced by about 1.3 m/s,the wind velocity of DG model series reduced by about 0.8 m/s;4)the PET of FG-2,FG-3,DG series and WG series models reduced by about 0.8-1.1℃.Furthermore,FG-2,FG-3 and DG series model presented better optimizations on the whole open floor space and could be the better choice for the greenery layout.

vertical climbing green façadethermal and wind environmentCFDcouple simulation methodhot-humid climate area

林瀚坤、肖毅强、朱雪梅

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广东工业大学建筑与城市规划学院, 广州 510000

华南理工大学亚热带建筑与城市科学全国重点实验室, 广州 510000

华南理工大学建筑学院, 广州 510000

垂直攀援绿化 风热环境 CFD 耦合模拟 湿热地区

国家自然科学基金资助项目广东省自然科学基金面上项目广东省自然科学基金面上项目教育部人文社会科学研究青年基金广州市科技计划基础与应用基础研究项目

520782142021A15150123762023A151501007423YJC760069202102020256

2023

10.13204/j.gyjzG22060205

工业建筑
中冶建筑研究总院有限公司

工业建筑

CSTPCD
影响因子：0.72
ISSN：1000-8993
年,卷(期)：2023.53(11)
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