| LARGE EDDY SIMULATION OF PARTICLE TRANSPORT IN FULLY DEVELOPED VERTICAL TURBULENT CHANNEL FLOW |
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| 作者姓名： | WANGAn LIUNan-sheng LUXi-yun |
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| 作者单位： | DepartmentofMechanicsandMechanicalEngineering,UniversityofScienceandTechnologyofChina,Hefei230026,China |
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| 基金项目： | ThisworkwassupportedbytheNationalScienceFundforDistinguishedScholars(GrantNo:10125210),theNationalNaturalScienceFoundationofChina(GrantNo:10302028),theChinaNKBRSFProject(GrantNo:2001CB409600),theHundredTalentProgramoftheChineseAcademyofSciences,andtheFou |
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| 摘 要： | Fully developed vertical turbulent channel flow with particle transport was investigated by use of Large Eddy Simulation (LES) approach coupled with dynamic the SubGrid Scale (SGS) model. It was assumed that the motion of each particle is followed in a Lagrangian frame of reference driven by the forces exerted by fluid motion and gravity under the condition of one-way coupling. The goal of this study is to investigate the effectiveness of the I.ES technique for predicting particle transport in turbulent flow and the behavior of particle-laden turbulent channel flow for three kinds of particles at different Stokes numbers. To depict the behavior of particle-laden turbulent channel flow, statistical quantities including particle fluctuation and fluid-particle velocity correlation, and visualization of the particle number density field were analyzed.
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| 关 键 词： | 水动力学 巨涡流模拟 水道湍流 粒子输运 拉格朗日结构 次格子刻度模型 |
LARGE EDDY SIMULATION OF PARTICLE TRANSPORT IN FULLY DEVELOPED VERTICAL TURBULENT CHANNEL FLOW |
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| WANGAn LIUNan-sheng LUXi-yun.LARGE EDDY SIMULATION OF PARTICLE TRANSPORT IN FULLY DEVELOPED VERTICAL TURBULENT CHANNEL FLOW[J].Journal of Hydrodynamics,2004,16(4):386-392. |
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| Authors: | WANG An LIU Nan-sheng LU Xi-yun |
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| Affiliation: | WANG An,LIU Nan-sheng,LU Xi-yun Department of Mechanics and Mechanical Engineering,University of Science and Technology of China,Hefei 230026,China |
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| Abstract: | Fully developed vertical turbulent channel flow with particle transport was investigated by use of Large Eddy Simulation (LES) approach coupled with dynamic the Sub-Grid Scale (SGS) model. It was assumed that the motion of each particle is followed in a Lagrangian frame of reference driven by the forces exerted by fluid motion and gravity under the condition of one-way coupling. The goal of this study is to investigate the effectiveness of the LES technique for predicting particle transport in turbulent flow and the behavior of particle-laden turbulent channel flow for three kinds of particles at different Stokes numbers. To depict the behavior of particle-laden turbulent channel flow, statistical quantities including particle fluctuation and fluid-particle velocity correlation, and visualization of the particle number density field were analyzed. |
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| Keywords: | Large Eddy Simulation (LES) turbulent channel flow particle transport particle-laden turbulent flow Sub-Grid Scale (SGS) model |
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