| Large Eddy Simulation of Flow Field in Vector Flow Clean-Room |
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| 作者姓名： | 樊洪明 刘顺隆 何钟怡 李先庭 |
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| 作者单位： | FAN Hongming，LIU Shunlong HE Zhongyi，LI Xianting Department of Building Science，School of Architecture，Tsinghua University，Beijing 100084，China; Department of Marine Power Engineering，Harbin Engineering University，Harbin 150001，China; |
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| 摘 要： | IntroductionThe air- conditioning system is an importantpartofthe air distribution system which directlyinfluences the indoor air quality.For a cleaningair- conditioning system,the air cleanliness degreein clean- rooms depends on the air distribution andt…
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Large Eddy Simulation of Flow Field in Vector Flow Clean-Room |
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| Abstract: | The turbulent large eddy simulation (LES) technique and the finite element method (FEM) of computational fluid dynamics (CFD) are used to predict the three-dimensional flow field in a vector flow clean-room under empty state and static state conditions. The partly expanded Taylor-Galerkin (TG) discretization scheme is combined with implicit stream-upwind diffusion in the finite element formulation of the basic equations with Gauss filtering. The vortex viscosity subgrid model is used in the numerical simulation. The numerical results agree well with the available experimental data, showing that the LES method can more accurately predict the size and location of large eddies in clean-rooms than the standard k-ε two equation model. |
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| Keywords: | turbulent flow large eddy simulation finite element method clean-room air distribution flow field numerical simulation |
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