| 弯曲管段内流动的大涡模拟 |
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| 引用本文： | 樊洪明,何钟怡,王小华. 弯曲管段内流动的大涡模拟[J]. 水动力学研究与进展(A辑), 2001, 16(1): 78-83 |
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| 作者姓名： | 樊洪明 何钟怡 王小华 |
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| 作者单位： | 1. 清华大学,
2. 哈尔滨工业大学, |
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| 摘 要： | 本文应用湍流大涡模拟方法对三维空间的弯管流进行了数值模拟。计算中使用了隐含流线迎风耗散作用具有三阶部分展开的Taylor-Galerkin离散格式，导出了经Gauss滤波流大涡模拟方法适用于边界形状复杂和存在各向异性大尺度涡的流动仿真。
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| 关 键 词： | 湍流大涡模拟 流场 有限元法 弯管流 |
| 文章编号： | 1000-4874(2001)01-0078-06 |
Large eddy simulation of a curved duct flow |
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| Fan Hong-ming,HE Zhong-yi,WANG Xiao-hua. Large eddy simulation of a curved duct flow[J]. Chinese Journal of Hydrodynamics, 2001, 16(1): 78-83 |
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| Authors: | Fan Hong-ming HE Zhong-yi WANG Xiao-hua |
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| Affiliation: | FAN Hong-ming 1,HE Zhong-yi 2,WANG Xiao-hua 2 |
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| Abstract: | The numerical simulation for a three-dimensional curved duct flow was carried out by means of the large eddy simulation (LES). Taylor-Galerkin discretization schemes of partly third-order expansion with implied streamline up-winding dissipation was used in the calculation. The finite element expressions of the basic equations after the Gauss filtering were deduced. The numerical results agree well with the available experimental data. It is indicated that the method of LES with reasonable scheme is applicable in the simulation of large scale anisotropic vortices with complex geometrical boundary. |
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| Keywords: | turbulent flow large eddy simulation flow field finite element method curved duct flow |
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