| NUMERICAL SIMULATION OF SEDIMENT RELEASE FROM RESERVOIRS |
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| 作者姓名： | A. KHOSROWNEJAD A. A. Salehi NEISHABORI |
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| 作者单位： | Student of Civil Engineering Tarbiat Modares University (corresponding author)Ph.D，Associated Professor of Civil Engineering Civil Engineering Department of Tarbiat Moddares University I. R. of Iran. |
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| 摘 要： | 1 INTRODUCTION Reservoirs sedimentation is a serious problem in many countries, including the I. R. of Iran. Accumulation of sediment deposits decreases worldwide reservoir storage capacity by one percent per year (Mahmood, 1987). The loss of reservoir st…
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| 关 键 词： | 数值模拟 沉积物 水库 流动 泥沙 |
| 收稿时间： | 2004-11 |
| 修稿时间： | 2005-08 |
NUMERICAL SIMULATION OF SEDIMENT RELEASE FROM RESERVOIRS |
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| A. KHOSROWNEJAD A. A. Salehi NEISHABORI.NUMERICAL SIMULATION OF SEDIMENT RELEASE FROM RESERVOIRS[J].International Journal of Sediment Research,2006,21(1):74-88. |
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| Authors: | A KHOSROWNEJAD A A Salehi NEISHABORI |
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| Institution: | corresponding author |
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| Abstract: | For the computation of the sediment quantity released from reservoirs, a vertical two-dimensional hydrodynamic model is combined with a sediment transport model. The hydrodynamic model is based on the equations of mass and momentum conservation along with a k - ε model for closure of the Reynolds stresses. The sediment transport model is based on the convection-diffusion equation of sediment concentration and the sediment continuity equation. Both the hydrodynamic and sediment transport models are developed in a boundary-fitted curvilinear co-ordinate system. Comparison of the predicted mean velocity field with laboratory results indicates that the present model captures most experimental trends with reasonable accuracy. Also good agreement is found in comparison of the sediment transport results for the numerical model and the experimental model. |
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| Keywords: | Reservoir Numerical modeling Flow field Sediment transport Bed evolution |
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