| 発表年月日 | 1997/12/18 |
|---|---|
| 発表テーマ | 低マッハ数近似にスタガード格子を用いた熱対流の計算 |
| 会議名 | 第11回数値流体力学シンポジウム |
| 主催者 | 日本流体力学会 |
| 開催地名 | 東京 |
| 学会区分 | 全国学会 |
| 発表形式 | 口頭（一般） |
| 単独共同区分 | 共同 |
| 国名 | 日本 |
| 開催期間 | 1997/12/18 ～ 1997/12/20 |
| 発表者・共同発表者 | 菅 牧子, 河村 哲也, 岩津 玲磨 |
| 概要 | The natural convection with large temperature difference is computed numerically using the Low-Mach-Number approximation with temperature-dependent viscosity and thermal conductivity. In this study, staggered grid system is used in order to hold down the numerical vibration. First, steady laminar natural convection above a horizontal line heat source is simulated in order to validate the simulation method. The result is in good agreement with analytical solutions. Secondly, two dimensional flow field driven by the two parallel heat source is computed in both cases of △T = 10°C and △T = 1000°C. When △T = 10°C, the flow field becomes symmetry and steady, on the other hand, it becomes unsteady in the case of △T = l000°C. |