WEKO3
アイテム
RANS CFD modeling of the flow around a thin windbreak fence with various porosities: Validation using wind tunnel measurements
https://niit.repo.nii.ac.jp/records/1002
https://niit.repo.nii.ac.jp/records/100281ba82c0-b488-4188-b30b-cd5dafdb8d8c
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-01-23 | |||||||||
| タイトル | ||||||||||
| タイトル | RANS CFD modeling of the flow around a thin windbreak fence with various porosities: Validation using wind tunnel measurements | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題 | CFD modeling | |||||||||
| キーワード | ||||||||||
| 主題 | Thin porous windbreak fence | |||||||||
| キーワード | ||||||||||
| 主題 | Validation | |||||||||
| キーワード | ||||||||||
| 主題 | Porosity | |||||||||
| キーワード | ||||||||||
| 主題 | Porous jump method | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | journal article | |||||||||
| アクセス権 | ||||||||||
| アクセス権 | metadata only access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||
| 著者 |
Tominaga, Yoshihide
× Tominaga, Yoshihide
× Shirzadi, Mohammadreza
|
|||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | In computational fluid dynamics (CFD) simulations of airflow in built environments, the porous-jump model is commonly used to represent extremely thin porous windbreak fences, which have much smaller sizes than the neighborhood computational cells. However, owing to the limited quantitative validation studies that include turbulence characteristics, no clear guidelines exist on modeling such thin porous fences in CFD simulations. In this study, pressure loss coefficients of porous materials with various porosity values and opening shapes were determined using a small wind tunnel while the velocity and turbulence statistics behind the fences were measured in an atmospheric boundary layer wind tunnel. Two separate CFD models based on the Reynoldsaveraged Navier?Stokes equation and porous-jump models were used to mic the airflow in each wind tunnel and then they were validated using the experimental results. The results showed that the pressure loss was accurately predicted by CFD simulations. For wire-mesh fences, a good agreement was obtained between experimental and numerical results for the mean streamwise velocity and turbulent kinetic energy (TKE), whereas the velocity deficit and TKE were overestimated and underestimated, respectively, for the non-wiremesh fences. This study can be used to improve the performance of thin porous windbreak fences. | |||||||||
| 書誌情報 |
Journal of Wind Engineering & Industrial Aerodynamics 巻 230, p. 105176, 発行日 2022-09-24 |
|||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0167-6105 | |||||||||
| DOI | ||||||||||
| 関連タイプ | isIdenticalTo | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | https://doi.org/10.1016/j.jweia.2022.105176 | |||||||||
| 権利 | ||||||||||
| 権利情報 | ? 2022 Elsevier Ltd. | |||||||||
| 権利 | ||||||||||
| 権利情報 | CC BY 4.0 | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 出版者 | ||||||||||
| 出版者 | Elsevier Ltd. | |||||||||
