| 言語種別 | 日本語 |
|---|---|
| 発行・発表の年月 | 2019 |
| 形態種別 | 学術研究論文 |
| 査読 | 査読あり |
| 標題 | 円筒容器内渦崩壊流れに対する格子収束指数の適用 |
| 執筆形態 | 共著 |
| 掲載誌名 | 日本計算工学会論文集 |
| 掲載区分 | 国内 |
| 出版社・発行元 | 日本計算工学会 |
| 巻・号・頁 | 2019 |
| 総ページ数 | 8 |
| 著者・共著者 | 岩津 玲磨, 中塚 勇貴, 鈴木 晃二, 児山 秀晴 |
| 概要 | According to a recent experimental measurement, the limiting Reynolds number Rec for
the appearance of vortex breakdown bubbles con ned in a cylindrical container is shifted toward higher values of Re than that reported in the classical experimental study by Escudier. In order to study this point, numerical simulation is performed using nite-difference codes. Grid- convergence-index (GCI) is estimated and grid-independent-solution (GIS) is derived by applying Richardson extrapolation. Whether the numerical solution shows higher values of limiting Rec as in the recent PIV measurement or lower values of Re as in the classical dye-injection observation by Escudier is assessed. |