| THREE-DIMENSIONAL TURBULENCE NUMERICAL SIMULATION OF A STEPPED SPILLWAY OVERFLOW |
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| 作者姓名： | CHENQun DAIGuang-qing ZHUFen-qing YANGQing |
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| 作者单位： | [1]CollegeofHydraulicandHydroelectricEngineering,SichuanUniversity,Chengdu610065,China [2]StateKeyHydraulicsLaboratoryofHighSpeedFlows,SichuanUniversity,Chengdu610065,China [3]GeotechnicEngineeringCo.,theSecondSurveyandDesignInstituteofRailway,Chengdu610031,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina.(GrantNo :5 98790 13) |
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| 摘 要： | In this paper, the κ-ε two-equation turbulence model was used to simulate the three-dimensional turbulent flow of the stepped spillway at the Yubeishan reservoir. In order to solve the curved free water surface and to handle the complex boundary conditions, the fractional Volume Of Fluid (VOF) model that is applicable to the solution of the stratified two-phase flow was intorduced to the κ-ε turbulence model and the unstructured grid was used for the discretization of the irregular simulation domain. By these methods, the turbulent flow field of the stepped spillway was simulated successfully.The location of the free surface along the spillway, the magnitude and distribution of the velocity, the pressure distribution on the step surface, the turbulence kinetic energy and turbulence dissipation rate were obtained by simulation. The changes and distributions of these characteristics along the width of the spillway were also obtained. The energy dissipation ratio of the stepped spillway was calculated according to the upstream and downstream water depth and velocities.
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| 关 键 词： | 湍流模型 湍流数值模拟 VOF模型 双相流 分级溢洪道 水力学 |
THREE-DIMENSIONAL TURBULENCE NUMERICAL SIMULATION OF A STEPPED SPILLWAY OVERFLOW |
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| CHENQun DAIGuang-qing ZHUFen-qing YANGQing.THREE-DIMENSIONAL TURBULENCE NUMERICAL SIMULATION OF A STEPPED SPILLWAY OVERFLOW[J].Journal of Hydrodynamics,2004,16(1):74-79. |
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| Authors: | CHEN Qun College of Hydraulic and Hydroelectric Engineering Sichuan University Chengdu China DAI Guang-qing State Key Hydraulics Laboratory of High Speed Flows Sichuan University Chengdu China ZHU Fen-qing Geotechnic Engineering Co the Second Survey and Design Institute of Railway Chengdu China YANG Qing State Key Hydraulics Laboratory of High Speed Flows Sichuan University Chengdu China |
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| Affiliation: | CHEN Qun College of Hydraulic and Hydroelectric Engineering,Sichuan University,Chengdu 610065,China,DAI Guang-qing State Key Hydraulics Laboratory of High Speed Flows,Sichuan University,Chengdu 610065,China ZHU Fen-qing Geotechnic Engineering Co.,the Second Survey and Design Institute of Railway,Chengdu 610031,China YANG Qing State Key Hydraulics Laboratory of High Speed Flows,Sichuan University,Chengdu 610065,China |
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| Abstract: | |
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| Keywords: | stepped spillway turbulence numerical simulation turbulence model VOF model |
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