NUMERICAL SIMULATION OF SEDIMENT RELEASE FROM RESERVOIRS
NUMERICAL SIMULATION OF SEDIMENT RELEASE FROM RESERVOIRS作者机构：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.
出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))
年 卷 期：2006年第21卷第1期
页 面：74-88页
学科分类：08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程]
主 题：Reservoir Numerical modeling Flow field Sediment transport Bed evolution
摘 要：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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