期刊論文
| 學年 | 110 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2021-11-01 |
| 作品名稱 | A method to estimate peak pressures on low-rise building models based on quasi-steady theory and partial turbulence analysis |
| 作品名稱（其他語言） | |
| 著者 | Yitian Guo; Chieh-Hsun Wu; Gregory A. Kopp |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Wind Engineering and Industrial Aerodynamics 218, 104785 |
| 摘要 | A new method for estimating peak area-averaged pressure coefficients on the roof of a low-rise building model is developed. The method relies on the well-known quasi-steady vector model to account for the large-scale, low-frequency fluctuations of the upstream wind. The novel approach is to account for small-scale and body-generated turbulence effects using a stochastic model. Wind tunnel data for a 1/50-scale low-rise building model for six different upstream turbulence conditions are used for the analysis. The fluctuating pressure component induced by the small-scale and body-generated turbulence is obtained by subtracting the quasi-static pressure component from the original pressure signal. It is observed that the small-scale pressure component is highly dependent on turbulence level of the upstream flow, such that normalization by the small-scale components of the upstream turbulence kinetic energy leads to a self-similar distribution. A Monte Carlo simulation was used to combine the small-scale and quasi-steady pressure components. The new model provides good predictions of peak area-averaged pressure coefficients that cannot be captured by the quasi-steady approach. |
| 關鍵字 | Building aerodynamics;Wind loads;Peak pressure coefficients;Partial turbulence simulation;Quasi-steady theory;Low-rise buildings |
| 語言 | en |
| ISSN | 0167-6105; 1872-8197 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/121956 ) |