| 近底管线绕流及涡激振动的二维有限元数值模拟 |
| |
| 引用本文： | 赵刘群,庞亚平.近底管线绕流及涡激振动的二维有限元数值模拟[J].水道港口,2007,28(4):265-269. |
| |
| 作者姓名： | 赵刘群 庞亚平 |
| |
| 作者单位： | 中交四航局港湾工程设计院有限公司,广州,510231 |
| |
| 摘 要： | 应用有限元方法通过求解原始变量的二维不可压粘性流体的N-S方程和管线振动方程,数值模拟了近底管线的绕流及漩涡脱落引起的管线振动,采用ALE方法解决因管线振动引起的动网格问题和流固耦合问题。数值模拟了雷诺数90
|
| 关 键 词： | 近底管线 涡激振动 ALE 有限元 |
| 文章编号： | 1005-8443（2007）04-0265-05 |
| 修稿时间： | 2007-05-21 |
Two-dimensional FEM model of vortex-induced vibration of a circular cylinder |
| |
| ZHAO Liu-qun,PANG Ya-ping.Two-dimensional FEM model of vortex-induced vibration of a circular cylinder[J].Journal of Waterway and Harbour,2007,28(4):265-269. |
| |
| Authors: | ZHAO Liu-qun PANG Ya-ping |
| |
| Institution: | Engineering Design Co. Ltd. of CCCC Fourth Harbor Engineering Co. Ltd., Guangzhou 510231, China |
| |
| Abstract: | The finite element method was employed to solve the N-S equation.Incorporated with the vibration equation,the vortex-induced vibration of the near-wall pipeline is studied by an Arbitrary-Lagrangian-Eulerian(ALE) algorithm.The Reynolds number based on the cylinder diameter and the undisturbed flow velocity range from 90 to 150.The numerical model has been validated by comparison with the experimental data in literature.The dynamic responses of the pipeline near a plane for gaps sizes from 0 to 8 times the diameter(d) of the pipeline were simulated and the vibration characteristics were studied attentively.The lift coefficient and drag coefficient were also studied at different gaps.The effect of gaps on vortex shedding frequency were also studied.The thickness of boundary layer is 0.8D.The motion of the cylinder was modeled by a spring-damper-mass system. |
| |
| Keywords: | ALE |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
