Numerical computation for vortex-indued vibration and fluid forces of two staggered circular cylinders
Project/Area Number |
15K06623
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Naval and maritime engineering
|
Research Institution | Nihon University |
Principal Investigator |
KONDO Norio 日本大学, 理工学部, 教授 (90178418)
|
Project Period (FY) |
2015-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
Keywords | 2円柱 / くい違い配置 / 流力振動 / 2自由度モデル / 数値計算 / FEM / くい違い配置2円柱 / 間隔比の変化 / 3次元数値解析 / 低スクルートン数 / くい違い角度10度 / 間隔比S/D=2, 3 / 3次元数値解析 |
Outline of Final Research Achievements |
When two circular cylinders are set as the staggered arrangements in smooth flow, it is found that the fluid forces acting on the two cylinders or the vortex-induced vibrations of the cylinders are different due to spacing between the cylinders. A study of the vortex-induced vibrations of the cylinders were achieved due to spacing ratios of 2 and 3 between the cylinders. In this study. we focused on the low Scruton number in order to achieve the computation for the vortex-induced vibrations of the close cylinders, so we could accurately obtain the numerical results even in such the low Scruton number.
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Report
(4 results)
Research Products
(8 results)