| 应用大涡模拟对水平管道进行流场分析 |
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| 引用本文： | 余熙,刘梅,卫宏远.应用大涡模拟对水平管道进行流场分析[J].天津大学学报(自然科学与工程技术版),2007,40(3):342-345. |
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| 作者姓名： | 余熙 刘梅 卫宏远 |
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| 作者单位： | 天津大学化工学院,天津300072 |
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| 摘 要： | 为了准确描述湍流三维非稳态随机波动这一高度非线性的特性，简述湍流物理现象的特点，引出基于不同角度建模的湍流模型，在理论上对大涡模拟进行分析，并运用并行计算机、FLUENT6．2软件作为计算平台，针对水平管道中两股不同入射速率的流股相互作用下的流场进行大涡模拟数值分析，并与标准模型进行比较．
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| 关 键 词： | 大涡模拟 并行计算 随机波动 水平管道 |
| 文章编号： | 0493-2137（2007）03-0342-04 |
| 修稿时间： | 2006-11-082006-12-28 |
Large Eddy Simulation for Flow Field of Horizontal Pipe |
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| YU Xi,LIU Mei,WEI Hong-yuan.Large Eddy Simulation for Flow Field of Horizontal Pipe[J].Journal of Tianjin University(Science and Technology),2007,40(3):342-345. |
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| Authors: | YU Xi LIU Mei WEI Hong-yuan |
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| Affiliation: | School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | To describe the characteristic of turbulence as 3D transient phenomenon with random fluctuations which is highly nonlinear, turbulence modeling ranging from approximate to highly rigorous was proposed. Moreover, large eddy simulation ( LES) theory model is briefly reviewed in this paper, and then a calculation case of LES for horizontal pipe to reveal flow field under the interaction between two different velocity streams was carried out by using parallel computer and computational fluid dynamics (CFD) code FLUENT6.2. The result of LES was compared with standard k-e model. |
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| Keywords: | large eddy simulation parallel computation random fluctuation horizontal pipe |
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