| 等边布置三圆柱绕流的数值分析 |
| |
| 引用本文： | 张爱社,张陵.等边布置三圆柱绕流的数值分析[J].应用力学学报,2003,20(1):31-36. |
| |
| 作者姓名： | 张爱社 张陵 |
| |
| 作者单位： | 西安交通大学,西安,710049 |
| |
| 基金项目： | 西安交通大学环境科学与工程学科“行动计划”资助项目，西安交通大学博士学位论文基金资助(基金代码:DFXJTU2 0 0 1 7) |
| |
| 摘 要： | 用有限元方法对于等边三角形布置的三个相同直径的二维圆柱绕流问题进行了数值模拟，分别求得了在不同间距比下的流场分布和各圆柱的升、阻力系数以及斯托哈罗数。计算结果表明，小间距比情形下三圆柱之间的干扰是严重的，流动并不对称于中心轴线，而是偏向下游的某个圆柱。数值计算结果与有关文献和实验进行了对比，结果令人满意。
|
| 关 键 词： | 柱体绕流 有限元方法 数值模拟 升力 阻力 |
| 文章编号： | 1000-4939(2003)01-0031-06 |
| 修稿时间： | 2001年8月3日 |
Numerical Simulation of Three Equispaced Circular Cylinders |
| |
| Zhang Aishe,Zhang Ling.Numerical Simulation of Three Equispaced Circular Cylinders[J].Chinese Journal of Applied Mechanics,2003,20(1):31-36. |
| |
| Authors: | Zhang Aishe Zhang Ling |
| |
| Abstract: | In this paper, the flow interference among three circu la r cylinders with different equilateral-triangular arrangements is calculated by the finite element method (FEM). The lift and drag coefficient, and St number a re resolved at different spacing ratios. The results show that the interference is serious when the cylinders are closely. When the spacing ratio is smaller tha n a certain value, the gap flow is biased to one side of certain downstream cyli nders. Some areas of the cylinder surface may be suffered very strong negative p ressure in downstream. The calculation results are compared with other experimen tal data, and the agreement can be satisfied. |
| |
| Keywords: | flow around circular cylinders FEM numer ical simulation lift force drag force |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
