| 闽南红砖大厝庭院形态对屋面风压与风场的影响研究 |
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| 引用本文： | 任兰红,单军,徐嵩. 闽南红砖大厝庭院形态对屋面风压与风场的影响研究[J]. 灾害学, 2021, 0(1): 94-99 |
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| 作者姓名： | 任兰红 单军 徐嵩 |
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| 作者单位： | 清华大学建筑学院;天津城建大学建筑学院 |
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| 基金项目： | 国家自然科学基金面上项目“应对台风-暴雨耦合灾害的海湾型城市智慧韧性规划理论研究”(52078330)。 |
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| 摘 要： | 基于ANSYS Fluent软件选用RNG k-ε 湍流模型,以闽南红砖大厝民居为对象,通过数值计算、 分组对比分析庭院与厝埕的进深对风场及屋面风压分布的影响并探讨利于抗风的建筑形式.研究表明:①随院落宽度的增加屋面最大平均风压系数绝对值呈现显著地降低又升高,最大降低21.2％;庭院宽度与进深的比例为1.5时屋面最大平...
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| 关 键 词： | 闽南红砖大厝 庭院宽度和进深 厝埕 风压系数 |
Impact of Courtyard Morphology on Wind Pressure and Wind Field of Red Brick Dwelling in Minnan |
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| REN Lanhong,SHAN Jun,XU Song. Impact of Courtyard Morphology on Wind Pressure and Wind Field of Red Brick Dwelling in Minnan[J]. Journal of Catastrophology, 2021, 0(1): 94-99 |
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| Authors: | REN Lanhong SHAN Jun XU Song |
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| Affiliation: | (School of Architecture,Tsinghua University,Beijing 100084,China;School of Architecture,Tianjin Chengjian University,Tianjin 300384,China) |
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| Abstract: | The RNG k-εturbulence model is selected in ANSYS Fluent software in the research,the Red Brick Dwelling in Minnan are chosen as research object.Analysis of the influence of courtyard and courtyard before dwelling on the wind field and roof wind pressure distribution were discussed,and the form of dwelling of wind resistance was discussed based on numerical calculation.Research showed that:①The absolute value of the maximum average wind pressure coefficient of the roof decreased significantly and rose with the increase of the courtyard width,with a maximum decrease of 21.2%.When the ratio of the courtyard width to the depth was 1.5,the maximum average wind pressure coefficient and the absolute value of the overall average wind pressure coefficient were the smallest,which was good for wind protection.②As the depth of the courtyard increased,the absolute value of the maximum average wind pressure coefficient of the roof decreased significantly,with a maximum decrease of 26.0%.When the ratio of the courtyard width to the depth was 0.67,the maximum average wind pressure coefficient and the absolute value of the overall average wind pressure coefficient of the roof were the smallest,which was good for wind protection.③The absolute value of the maximum average wind pressure coefficient and the absolute value of the overall average wind pressure coefficient of the roofs with courtyard before dwelling were significantly reduced compared with those without courtyard before dwelling,and the absolute value of the maximum average wind pressure coefficient was reduced by 48.7%.As the depth of courtyard before dwelling decreased,except for a small number of measuring points,the absolute value of the average wind pressure coefficient decreased,with a maximum decrease of 26%. |
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| Keywords: | Red Brick Dwelling in Minnan width and depth of courtyard courtyard before dwelling pressure coefficient |
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