| 圆截面U形管流有限元模拟 |
| |
| 引用本文： | 樊洪明,何开远,李先庭.圆截面U形管流有限元模拟[J].空气动力学学报,2009,27(1). |
| |
| 作者姓名： | 樊洪明 何开远 李先庭 |
| |
| 作者单位： | 1. 北京工业大学,北京,100022
2. 清华大学,北京,100084 |
| |
| 基金项目： | 北京市重点实验室基金 |
| |
| 摘 要： | 弯曲圆管内流动具有很强的工业应用背景,管内二次涡的大小、位置及发生的频率会对流动系统的阻力及热质交换产生重大作用,研究弯曲圆管内的流动具有重要的理论意义.本文应用湍流大涡模拟方法对弯道流动进行了数值模拟.用时间推进法,给出了隐含流线迎风耗散作用的二阶完全展开Taylor-Galerkin有限元离散格式,数值计算的结果与实验结果符合较好.表明大涡模拟方法适用于边界形状复杂,存在各向异性的大尺度涡的流动仿真.
|
| 关 键 词： | 湍流 大涡模拟 流场 有限元法 弯管流 |
Finite element method simulation of a duct flow |
| |
| FAN Hong-ming,HE Kai-yuan,LI Xian-ting.Finite element method simulation of a duct flow[J].Acta Aerodynamica Sinica,2009,27(1). |
| |
| Authors: | FAN Hong-ming HE Kai-yuan LI Xian-ting |
| |
| Institution: | 1.Beijing University of Technology;Beijing 100022;China;2.Tsinghua university;Beijing 100084 |
| |
| Abstract: | Presents the results of numerical simulation for a curved duct flow by means of large eddy simulation(LES).The finite element method Taylor-Galerkin scheme is used in the simulation.The results of calculation coincide with Taylor's experiments reasonably.It demonstrates that LES technique is especially available for flow situations with complicated geometrical boundary system in which always exist anisotropic large vortexes. |
| |
| Keywords: | turbulent flow flow field large eddy simulation finite element method curved duct flow |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
