WEKO3
アイテム
風力タービン用翼型に発生するはく離泡及び翼特性の数値解析
https://nied-repo.bosai.go.jp/records/5145
https://nied-repo.bosai.go.jp/records/51455a9405b3-fd99-4eac-b809-519b5eb16d5e
| Item type | researchmap(1) | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-30 | |||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||
| タイトル | 風力タービン用翼型に発生するはく離泡及び翼特性の数値解析 | |||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||
| タイトル | Numerical simulation of a separation bubble on an airfoil for wind turbines and its aerodynamic characteristics | |||||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||||
| 言語 | jpn | |||||||||||||||||||||||||
| 著者 |
木枝 香織
× 木枝 香織
× 小垣 哲也
× 松宮 ★
× 谷口 伸行
× 小林 敏雄
|
|||||||||||||||||||||||||
| 抄録 | ||||||||||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||||||||||
| 内容記述 | In order to predict and understand the low Reynolds number phenomena observed on wind turbine blades, especially formation of separation bubbles, the flow fields around an airfoil for wind turbines are numerically analyzed in the condition that a separation bubble is observed in wind tunnel experiments. The results from three-dimensional unsteady analysis using a finer grid system show a discontinuity in the pressure coefficient distribution around the airfoil. This discontinuity captures the formation of a separation bubble at a certain location, which shows good agreements with experimental results. From visualization of flow fields, the mechanism of separation bubbles is recognized as follows: after vortex formation and growth in the separated boundary layer, the vortex distortion and transition to 3-dimensionality follow, then the flow field becomes fully turbulent. The power spectrums of pressure field from experiments support this feature. | |||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||
| 抄録 | ||||||||||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||||||||||
| 内容記述 | In order to predict and understand the low Reynolds number phenomena observed on wind turbine blades, especially formation of separation bubbles, the flow fields around an airfoil for wind turbines are numerically analyzed in the condition that a separation bubble is observed in wind tunnel experiments. The results from three-dimensional unsteady analysis using a finer grid system show a discontinuity in the pressure coefficient distribution around the airfoil. This discontinuity captures the formation of a separation bubble at a certain location, which shows good agreements with experimental results. From visualization of flow fields, the mechanism of separation bubbles is recognized as follows: after vortex formation and growth in the separated boundary layer, the vortex distortion and transition to 3-dimensionality follow, then the flow field becomes fully turbulent. The power spectrums of pressure field from experiments support this feature. | |||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||
| 書誌情報 |
ja : 日本機械学会論文集Ｂ編 en : Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B 巻 68, 号 676, p. 3302-3309 |
|||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||
| 出版者 | 一般社団法人 日本機械学会 | |||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||
| 出版者 | The Japan Society of Mechanical Engineers | |||||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||||
| 収録物識別子 | 0387-5016 | |||||||||||||||||||||||||
| DOI | ||||||||||||||||||||||||||
| 関連識別子 | 10.1299/kikaib.68.3302 | |||||||||||||||||||||||||
