教師資料查詢 | 類別: 會議論文 | 教師: 游瑛樟 YU YING-CHANG (瀏覽個人網頁)

標題:Effect of Porous Multi-layer Envelope System on Effective Wind Pressure of Building Ventilation
學年
學期
發表日期2020/01/30
作品名稱Effect of Porous Multi-layer Envelope System on Effective Wind Pressure of Building Ventilation
作品名稱(其他語言)
著者游瑛樟; 羅元隆
作品所屬單位
出版者
會議名稱ICEAFD 2020 : 22nd International Conference on Environmental Architecture and Facade Design
會議地點Sydney, Australia
摘要Building ventilation performance is an important indicator of indoor comfort. However, in addition to the geometry of the building or the proportion of the opening, the ventilation performance is also very much related to the actual wind pressure of the building. There are more and more contemporary building designs built with multi-layer exterior envelope, according to the research that has been carried out, shows that the porous outer layer of the building has a significant wind damping effect, causing the phenomenon of actual wind pressure loss. However, the relationship between the wind damping effect and the actual wind pressure is not linear. This effect can make the indoor ventilation of the building rationalized to reasonable range under the condition of high wind pressure, and also maintain a good amount of ventilation performance under the condition of low wind pressure. In this study, wind tunnel experiments were carried out to simulate the different wind pressures flow through the porous outer layer, and observe the actual wind pressure strength engage with the window layer to find the decreasing relationship between the damping effect of the porous shell and the wind pressure. Experiment specimen scale was designed to be 1:50 for testing real-world building conditions, the study found that the porous enclosure has protective shielding without affecting low-pressure ventilation. Current study in this research observed the porous skin may damp more wind energy to ease the wind pressure under high-speed wind. Differential wind speed may drop the pressure into similar pressure level by using porous skin. The actual mechanism and value of this phenomenon will need further study in the future.
關鍵字Renault number;Porous media;Wind damping;Wind tunnel test;Building ventilation
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20200130~20200131
通訊作者游瑛樟
國別澳洲
公開徵稿
出版型式
出處
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